HOUSTON — Deshaun Watson’s teammates talked all week about how they never feel as if they’re out of any game when No. 4 is on the field.

On Saturday, Watson showed why the Texans have so much trust in him, as the quarterback’s dazzling performance late after a tough start led them to a playoff victory.

Watson spun out of a would-be sack and coolly completed a pass that set up the winning field goal in overtime as the Texans rallied from a double-digit second-half deficit for a 22-19 victory over the Bills in the wild-card round of the playoffs.

Both teams punted on their first possessions of overtime — the first extra period in an AFC wild-card game since January 2012. On Houston’s next drive, Watson evaded a sack by wriggling away from one defender and bouncing off another before rolling out to find Taiwan Jones for a 34-yard reception to set up first-and-goal.

Watson flexed both arms as the crowd at NRG Stadium went wild — knowing their team was in position to pull off another comeback win in their city’s playoff history.

“I told myself to stay up. I mean, it’s do-or-die now. I just had to make the play,” Watson said.

Ka’imi Fairbairn then kicked a 28-yard field goal to lift Houston to the victory.

The Texans (11-6) advance to the divisional round of the playoffs next weekend where they’ll face either the Chiefs or the Ravens depending on the outcome of Saturday night’s Titans-Patriots game.

The Texans got a boost from the return of J.J. Watt, who had a sack that helped spark his team. It was Watt’s first game after sitting out since October with a torn pectoral muscle.

“This is why you come back,” Watt said.

Houston scored 19 straight points to take the lead before Stephen Hauschka’s 47-yard field goal tied it for Buffalo with 5 seconds left to force overtime.

“We never quit, regardless,” Watson said. “Whatever it takes to get the win. I mean, we’re going to keep fighting.”

Watt was wowed by the play of Watson.

“The play he made at the end of the game — nobody makes that play,” he said. “The guy’s unbelievable. I’m very thankful and lucky to have him as my quarterback. That’s why you play the whole game.”

The win was Texans’ first playoff victory since the 2016 season and extends Buffalo’s postseason losing streak to six games, with their most recent playoff win coming in 1995.

The game conjured memories of another huge comeback in a wild-card game. The last time teams from Houston and Buffalo met in the playoffs it was in a game that is known as “The Comeback.” The Bills set an NFL record for the largest comeback in NFL history by rallying from a 32-point deficit for a 41-38 overtime win against the Houston Oilers (now the Titans) in a 1993 wild-card game.

This time Josh Allen and the Bills (10-7) used a dominant first half to build a 13-point lead and were up 16-0 in the third quarter, before Allen began to struggle.

“He was just trying to do too much and getting a little bit extreme with what he felt like we needed at the time,” coach Sean McDermott said. “But overall, we just didn’t make enough plays.”

Watson had 247 yards passing and ran for 55 yards and Hopkins had 90 yards receiving. Watson led the Texans to the victory despite being sacked seven times, led by three from Jerry Hughes, and hit 12 other times.

Allen threw for 264 yards, ran for 92 and caught a touchdown pass on a trick play in the first quarter, but often looked rattled late in his playoff debut.

Houston couldn’t get anything going on offense before halftime and had 81 yards in a first half in which DeAndre Hopkins caught no passes for the first time since Week 16 of the 2017 season.

After Houston pulled within 16-8 on Watson’s 20-yard TD run and subsequent 2-point conversion dive, the Bills were driving early in the fourth quarter when Allen was sacked by Whitney Mercilus and fumbled. The ball was recovered by Jacob Martin at the Buffalo 47. Houston cashed in on the miscue with a 41-yard field goal that cut the lead to 16-11 with about 11 minutes to go.

Watson connected with Carlos Hyde on a 5-yard touchdown pass and Hopkins on a 2-point conversion with about five minutes left to put the Texans on top 19-16.

“We didn’t execute how we should have, and we didn’t make as many plays as we should have,” Allen said. “That’s what it really comes down to. They made one more play than us.”