Houston Texans quarterback Deshaun Watson (4) scores a touchdown against Kansas City Chiefs linebacker Anthony Hitchens (53) and safety Tyrann Mathieu (32) during the second half of an NFL divisional playoff football game, in Kansas City, Mo., Sunday, Jan. 12, 2020. (AP Photo/Charlie Riedel)
Houston Texans quarterback Deshaun Watson (4) scores a touchdown against Kansas City Chiefs linebacker Anthony Hitchens (53) and safety Tyrann Mathieu (32) during the second half of an NFL divisional playoff football game, in Kansas City, Mo., Sunday, Jan. 12, 2020. (AP Photo/Charlie Riedel) Credit: Charlie Riedel

KANSAS CITY, Mo. — Patrick Mahomes and the Kansas City Chiefs are back in the AFC championship game.

How they returned to the brink of their first Super Bowl appearance in 50 years was unlike anything anybody could have imagined.

After digging a 24-0 hole against Houston early in the second quarter Sunday, Mahomes and the rest of the high-flying Chiefs embarked on the biggest comeback in franchise history. Their young superstar proceeded to throw for 321 yards and five touchdowns, Travis Kelce and Damien Williams reached the end zone three times apiece, and Kansas City reeled off 41 consecutive points in a 51-31 victory over the Texans in the divisional round of the playoffs.

The Chiefs are the first team in NFL history to win a playoff game by at least 20 points after trailing in that game by at least 20 points. And Mahomes is the first player in NFL history with at least 300 passing yards, at least five TD passes and at least 50 rushing yards in a playoff game.

“Yeah, I mean, obviously we didn’t start the way we wanted to, but all we were preaching — offense, defense and special teams — is let’s do something special,” Mahomes said. “Everybody’s already counting us out, let’s keep fighting and just go one play at a time, and we found a way. Obviously, this is a huge win and now we’ve got the AFC championship game at home.”

The Chiefs (13-4), who lost to the Patriots in overtime in last year’s conference title game, will play Tennessee next Sunday for a spot in Miami. The Titans stunned Lamar Jackson and the top-seeded Baltimore Ravens on Saturday night.

“We’ve already played them and we know they’re a tough team,” Mahomes said of the Titans, who beat Chiefs in November. “They’re a team that battles all the way until the end. They’re a team that’s really hot, playing really good football right now, so we know it’s going to take our best effort. And, whatever way, we’ve got to find a way to win. That’s the biggest thing you saw here today was we’ve just got to find a way no matter what.”

Kelce finished with 10 catches for 134 yards, Williams ran for two scores while catching a TD pass, helping the Chiefs win their seventh consecutive game and reach back-to-back AFC title games for the first time.

Watson, meanwhile, threw for 388 yards and two touchdowns while running for another, but not even his heroics could bail out the Texans (11-7) after they were outscored 28-0 in the second quarter. They continued to allow Kansas City to pull away during a dismal third, their epic collapse leaving the reborn Houston franchise 0-4 in the divisional round.

The Chiefs certainly gave them the perfect opportunity to finally break that streak in the first quarter.

On defense, Kansas City blew overage on Kenny Stills on the opening possession, allowing him to walk into the end zone from 54 yards. On offense, they wasted timeouts, dropped a series of easy passes and managed just 46 yards. And on special teams, the Chiefs had a punt blocked for a score and fumbled a return that set up another touchdown.

Indeed, the Texans were humming right along after finishing on a 22-3 run to beat Buffalo last week, while the mountain of miscues made by the Chiefs made them only the fourth home playoff team to trail 21-0 after the first quarter.

Then it was the Texans’ turn to struggle.

They had stretched the lead to 24-0 before the Chiefs, whose largest deficit overcome had been 21 points, put together a comeback for the ages. Mahomes hit Williams with a quick touchdown toss to begin it, then Houston curiously faked a punt at its own 31-yard line and was stuffed, giving the Chiefs a short field and another easy touchdown.

On the ensuing kickoff, Texans return man DeAndre Carter had the ball pop loose and into the arms of Darwin Thompson, whose return set up a second Mahomes-to-Kelce touchdown in a matter of seconds. And a third came after the Chiefs forced a punt — a successful one, for a change — and they drove 90 yards to take a stunning 28-24 halftime lead.

“I mean, it was amazing,” Mahomes said of Kelce. “The first thing I said to him when I saw him there at the end, I was like, ‘Man, I mean, you’re a monster, man. You are.’ I mean, the way he was fighting through injury and still making plays all day long.”

The comeback became a clobbering by the time the third quarter ended.

The Chiefs’ breezed downfield to start the second half, and Williams finished the drive with his first TD run. Their overhauled defense under coordinator Steve Spagnuolo sacked Watson on fourth down to get the ball right back, and Mahomes and Co. required just six more plays to position Williams for another TD run and a 41-24 lead.

It was the most unanswered points in a playoff game since the Jets had 41 against the Colts in the 2002 wild-card round.

Even when the Texans finally cracked the scoreboard, when Watson scrambled to his left and dived over the pylon, the Chiefs rendered the touchdown moot. In four plays they went 72 yards to set up the fifth TD pass by Mahomes, the strike to little-used tight end Blake Bell giving coach Andy Reid’s team a postseason-record seven straight TD drives.

It also gave a festive crowd that turned out early in freezing weather and a slight drizzle a chance to celebrate early.

TITANS 28, RAVENS 12

BALTIMORE — The Tennessee Titans fear no one. Not even the NFL’s best team.

Why should they with Derrick Henry running — and even throwing — the ball, and a big-play defense making clutch stops and turnovers?

One week after dominating defending Super Bowl champion New England, Henry gained 195 yards rushing and threw a 3-yard touchdown pass in a 28-12 victory over the Ravens. Baltimore (14-3) had won its last 12 games, with quarterback Lamar Jackson setting records and looking unstoppable.

On Saturday night, it was Henry who was unstoppable.

Plus, Tennessee’s defense had two interceptions of Jackson, who also lost a fumble, and the Titans (11-7) twice stopped Baltimore on fourth-and-1.

Henry’s jump-pass to Corey Davis displayed yet another of his skills. He has completed three throws in four attempts in his career.

But it’s the way he plows over and through opponents that makes Henry — and the Titans — dangerous. Next week, they will go after their second Super Bowl trip and first since the 2000 season at Kansas City. The last sixth seed to get to the big game was Green Bay in the 2010 season; the Packers won it all.

Tennessee scored all of its points off takeaways or fourth-down stops.

Ryan Tannehill’s throws to Jonnu Smith and Kalif Raymond, who missed the last two games in concussion protocol, gave Tennessee a 14-point edge.

Tennessee’s first score came after tight end Mark Andrews, the Ravens’ top receiver this season, mistimed his leap and had Jackson’s pass deflect into the air. Safety Kevin Byard was there to pick it off.

Byard scooted 31 yards down the left side, and with a 15-yard personal foul penalty on Jackson added, the Titans were at the Baltimore 35. The hushed crowd then saw five straight Titans runs to the 4 before Earl Thomas came free untouched for an 8-yard sack.

Tennessee simply shrugged and Smith made a juggling catch in the left corner of the end zone. Replay determined he landed barely in bounds for a 7-0 lead.

A fourth-down stop with less than a yard to go — the first time in nine tries all season the Ravens failed on fourth-and-1 — set up Tennessee’s next touchdown. Tannehill made it 14-0 with his gorgeous long pass that floated over Raymond’s shoulder into his arms behind All-Pro defensive back Marcus Peters. The folks in the stands dressed in purple, who hadn’t seen their team in such a deep hole since the end of September, had gone silent.

They did wake up for Baltimore’s 12-play second-quarter drive that included a 30-yard completion to rookie Marquise Brown on third down. But the drive netted only Jason Tucker’s 49-yard field goal.

Brown again was instrumental on a late 91-yard drive to Tucker’s 22-yarder as he made a spectacular one-handed grab of a 38-yard pass, also on third down. Getting within one score in a half they were generally outplayed gave the Ravens little boost, though.

Henry’s 66-yard romp on third-and-1 led to his passing TD on a direct snap in the third quarter, followed one play later by Jurrell Casey forcing Jackson’s fumble, recovered by rookie Jeffery Simmons. Tannehill’s 1-yard run made it 28-6.

49ERS 27, VIKINGS 10

SANTA CLARA, Calif. — Jimmy Garoppolo threw a TD pass on his opening drive as a playoff starter and then watched San Francisco’s defense and running game take over from there in the 49ers’ 27-10 victory over the Minnesota Vikings in the divisional round Saturday.

The Niners (14-3) first playoff game in six seasons and first ever at Levi’s Stadium turned into a lopsided one as top-seeded San Francisco turned a pair of second-half turnovers by Minnesota (11-7) into 10 points.

Richard Sherman set up Tevin Coleman’s second short touchdown run of the game with an interception against Kirk Cousins and Marcus Sherels’ fumbled punt led to a field goal that made it 27-10 early in the fourth quarter.

“Those guys did very well,” Coleman said of his offensive line. “They moved the guys back so I had clear holes to run through. So, yeah, they did a real good job.”

San Francisco didn’t allow Minnesota to gain a first down for more than 27 minutes of game action starting late in the second quarter.

The Niners will host the NFC championship game next week against Green Bay.

“A lot of things to clean up, but we played well enough to get the win,” tight end George Kittle said. “That’s all you can ask for. Playoff football, anyone can win and we just made more plays today.”

Garoppolo threw an interception deep in his own territory late in the first half and then spent most of the second half handing the ball off to Coleman and Raheem Mostert.

There was little reason for coach Kyle Shanahan to take chances the way his defense completely bottled up talented runner Dalvin Cook. That took away Minnesota’s play-action game and forced Cousins into becoming a drop-back passer.

“That was the No. 1 emphasis all week,” defensive lineman Nick Bosa said of the Minnesota running game. “We knew we were facing probably the best back we’ve faced all year with Dalvin, and we knew we had to earn the right to pass rush. So, that’s what we did. We took the run as serious as we could, shut it down and then we ate.”

Cousins finished 21 for 29 for 172 yards with his only big play coming on a 41-yard TD pass to Stefon Diggs in the first quarter.

Cook was held to 18 yards on nine carries as the Niners defense was back to its dominant early season form thanks in part to the return from injuries of defensive end Dee Ford, linebacker Kwon Alexander and safety Jaquiski Tartt.

San Francisco had six sacks and held Minnesota to 147 yards for the game with a large chunk coming on two late garbage-time drives.

PAKCERS 28, SEATTLE 23

GREEN BAY, Wis. — Aaron Rodgers connected with Davante Adams eight times for 160 yards and two touchdowns, Green Bay’s spruced-up defense fended off a spirited Seattle rally, and the Packers held on for a 28-23 victory Sunday night to reach the NFC championship game for the third time in six years.

Aaron Jones rushed for 62 yards and two first-half scores for the Packers (14-3), who will travel next weekend to take on top-seeded San Francisco.

Russell Wilson carried the Seahawks (12-6) on yet another comeback, this time from a 21-3 halftime deficit, but the Packers forced a punt just before the two-minute warning on the second sack of the game by Preston Smith, Green Bay’s fifth of the game. Za’Darius Smith, the other big-money free agent added to the defense last spring, had two sacks himself.