Twisting and tying shoelaces into a knot became a formidable task for Justin Herbert in the days following hand surgery.

Every time the Chargers quarterback leaned over to tie his shoes, his cast would nudge in the way, complicating a once-menial task.

For Herbert, it became a constant reminder of the broken bone he suffered during a 31-14 victory over the Las Vegas Raiders on Nov. 30 — a helmet-to-hand hit from Raiders safety Jeremy Chinn that required surgery on his non-throwing hand the next day.

And while the 27-year-old, who earned his second Pro Bowl honor Tuesday, has been far from perfect since the injury, the Chargers (11-4) have managed to win four consecutive games, including two against last season’s Super Bowl teams.

“The days went on, and as I got better and more mobility with (the left hand), I think it’s become more normal, and it feels a bit better, so that’s also a positive,” Herbert said earlier this week.

Eking out wins against the Philadelphia Eagles and Kansas City Chiefs, Herbert increased his yards-per-pass attempt from 5.3 yards to 7.2 yards. His completion percentage improved from a season-low 46.2% against the Eagles to a respectable 65.5% against the Chiefs.

Against the Dallas Cowboys, Herbert recorded a 132.8 passer rating, his best since December 2021 in Week 14 against the New York Giants. He passed for 300 yards and three touchdowns in a 34-17 win over the Cowboys that led to the Chargers clinching a playoff berth Monday with San Francisco’s win over Indianapolis.

“To me, that’s just a test of the type of person, type of player he is,” said wide receiver Quentin Johnston, who made a spectacular, one-handed touchdown catch and finished with 104 receiving yards against Dallas. “I mean, shoot, still playing and executing at a high level — I’m really happy to be on the team with him. I would rather be with nobody else but him.”

The Houston Texans (10-5) on Saturday at SoFi Stadium will allow Herbert the chance to build on his impressive season, and exorcise at least some of his playoff demons.

Herbert’s nightmare performance against the Texans in the wild-card playoffs last season remains seared into his memory. He threw a career-worst four interceptions in a 32-12 defeat that dropped him to 0-2 in career playoff games.

“No one felt worse than I did,” Herbert said. “I think it’s important to continue to move forward and realize that it’s what happened, and it would be crazy of me to deny the truth of what happened and to live in this reality where, if I tried to block it out, I don’t think that’s gonna be any good.”

Plenty remains at stake for the Chargers. They remain in the hunt for the AFC West title and the AFC’s top playoff seed. If the Chargers beat the Texans and follow with a win over the Denver Broncos in Week 18, they’ll win the division. The Chargers need to win out and hope the Jacksonville Jaguars and New England Patriots both lose at least once to secure the No. 1 seed.

While coach Jim Harbaugh says the team is approaching the next two weeks one game at a time, the Chargers’ defense — inspired by Herbert’s efforts — sees the path to continuing their red-hot run.

“It’s a hell of a statement he’s making throughout the building, and everybody can feel it,” outside linebacker Khalil Mack said.