SÃO PAULO, Brazil — Turns out, the marquee matchup Friday night between the Chargers and Kansas City Chiefs isn’t just a season-opening showdown between two premier quarterbacks and legitimate Super Bowl hopefuls.

It’s also a family feud — minus the bad blood.

Devin Woodhouse, head strength and conditioning coach for the Chargers, is the son-in-law of Chiefs coach Andy Reid, an under-the-radar connection that further hems these AFC West rivals.

“In our first game last year, I was a little anxious playing them,” Woodhouse told The Times. “It felt weird rooting against him at times.”

Reid understands, and he loves the fact that before bringing Woodhouse with him from the University of Michigan, Chargers coach Jim Harbaugh called his Kansas City counterpart and asked him if that would be OK.

“I said, ‘Heck, yeah, I’m honored that he’s got an opportunity to work for you,’” Reid said. “I got the biggest kick out of that, that Jim would even think of that. … What a class act.”

Chargers strength and conditioning coach Devin Woodhouse instructs players during practice at The Bolt in El Segundo on Dec. 13, 2024.

(Los Angeles Chargers)

Woodhouse, modest and focused on his Chargers responsibilities, was initially reluctant to sit down for an interview. But Harbaugh and Reid nudged him to talk, as did his direct boss, Ben Herbert, executive director of player performance.

“I don’t want to dim that light on him,” Herbert said. “I want that light brighter.”

Woodhouse, 34, who grew up in Rancho Cucamonga, met his future wife, Drew Ann Reid, when they were members of the same ward of their church in Provo, Utah. They had mutual friends, an instant connection and were married in 2013.

The couple was further bonded by tragedy. Drew Ann’s older brother, Garrett, who struggled with drug abuse for years, died in 2012. The twin brother of Woodhouse, Chaz, who was confined to a wheelchair with cerebral palsy, died a year later.

“As our relationship was growing, her brother passed away,” Woodhouse said. “We grew even closer together.”

The two now have four children, two boys and two girls, all of whom refer to Reid as “Gramps.” Woodhouse doesn’t call his father-in-law anything but “Coach.”

“I would say he’s a better man than he is a coach, and he’s a pretty dang good coach,” Woodhouse said. “And [mother-in-law] Tammy is the head coach of the head coach, so that’s how good they both are. I just love them, and not just the people they are for my wife, but for my kids and their grandkids.

“One of the things I love most about Coach Reid is how much I feel people love to play for him. It’s a cool thing to witness and I respect it a lot.”

Woodhouse feels the same way about Harbaugh, for whom he and Herbert worked at the University of Michigan.

“Ben Herbert found Dev,” Harbaugh said. “When Herb recommends somebody, I already know it’s going to be good. He doesn’t bring in anybody who doesn’t have a tremendous work ethic. Devin came in, and Herb was right.”

Herbert is meticulous down to the smallest detail. For instance, each dumbbell at the Chargers facility is emblazoned with the club’s lightning-bolt logo. Not only is that wall of weights always precisely arranged, but every lightning bolt is arched in an identical way. To ensure there’s never a speck of dust on the floor, Herbert and his crew use electric leaf blowers each day to clean the massive space.

Helping oversee the physical well-being of so many elite athletes is a challenging assignment, particularly for a franchise that has an unfortunate history of losing key players to injuries — as the Chargers did in August with left tackle Rashawn Slater, who sustained a season-ending knee injury.

Chargers strength and conditioning coach Devin Woodhouse helps quarterback Justin Herbert with his jersey during training camp in El Segundo on July 21, 2025.

(Ty Nowell / Los Angeles Chargers)

The way Harbaugh sees it, no one is better equipped to train an NFL team than Herbert.

“We are the tip of the spear,” said Herbert, who is not related to Chargers quarterback Justin Herbert. “Our job is to impact the mental and physical capability of the players. The physical part is much easier. The mental part — emotional stability, consistency — that’s the separator. And trust is everything.”

Woodhouse has a knack for building and maintaining those trusts.

“He has an ability to build relationships across a melting pot of personalities,” Herbert said. “He’s also versatile across range-of-motion, tissue and joint, strength, power and movement traits. So much so that with my 14-year-old, twice a week I want Coach Woodhouse to work with him.”

Woodhouse has a particularly keen eye when it comes to evaluating the tiniest aspects of a person in motion, helping players make subtle adjustments to the way they run in order to improve their speed.

Chargers strength and conditioning coach Devin Woodhouse works with Chargers wide receiver Ladd McConkey before a game at SoFi Stadium against the Tampa Bay Buccaneers on Dec. 15, 2024.

(Ty Nowell / Los Angeles Chargers)

“Dev’s someone who’s going to support you, but he’s going to tell it like it is,” Chargers receiver Ladd McConkey said. “I’ll be running a route, and Dev’s over there with his phone recording me. Then we’ll look at it in slo-mo and break it down.”

During games, Woodhouse is on the sideline as a “get-back” coach — a term he doesn’t particularly like — making sure players and coaches keep a sufficient distance from the field.

As for his own emotions, he figures he will have them in check, even with his father-in-law on the opposite sideline.

Family is family, true. But football is football.