What opinion supersedes the other when there are recommendations for the player? Guerrero's or the training staff? I think I know that answer.
But the proof is in the pudding. If the players are healthier on average, than other teams, ok.
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What exactly is Alex Guerrero’s job with the Las Vegas Raiders?
Guerrero’s title — wellness coordinator — is intentionally nebulous. It gives him purview over all training staff operations, including strength and conditioning, nutrition, medical and mental health.
The longtime trainer gained notoriety for working with Tom Brady for most of his NFL career. They grew to become close friends, and eventually business partners when they co-founded health and wellness brand TB12 in 2013.
Once Brady became a minority owner last October, it opened the door for Guerrero and Brady to bring the TB12 method to the Raiders. Owner Mark Davis, general manager John Spytek and coach Pete Carroll signed off on bringing Guerrero onto staff this offseason.
“I was fortunate and blessed to work with Tom Brady for so many years. And just through the years, we’ve always talked about if we ever had the opportunity to kind of do it at the team level, that we would love to do that,” Guerrero told
The Athletic in a phone interview last week. “It was offered to me to be able to do what I’ve been doing for the last 30-plus years, and to be able to bring it and do some of it here at the Raiders.”
Guerrero’s relationship with Brady goes back to Brady’s playing days in New England. (Elsa / Getty Images)
The foundation of the Raiders training staff has already been in place for years. Head athletic trainer Chris Cortez has been with the franchise for six years. Ricky Ng (director, performance nutrition) and A.J. Niebel (head strength and conditioning coach) both have seven years under their belt. Rather than completely overhaul how they operate, Guerrero said he has aimed to make smaller tweaks.
“I’m just sharing with them some of the philosophies that worked for Tom and I over the years,” Guerrero said. “And they were really just open, and they were thoughtful, and they took it in and they applied them. They’re able to now see the success that comes from being able to apply some of those things. … The staff couldn’t be any better. I think the Raiders have the best staff in the league.”
The primary focus for Guerrero is to limit non-contact, soft tissue injuries. To do that, the Raiders have put an added emphasis on “prehab” workouts that intend to strengthen and increase the functionality of areas of the body that are particularly susceptible to injury.
While it’s too early to make any determinations about the approach’s effectiveness, the Raiders have avoided significant non-contact injuries thus far. The only players on the roster who are sidelined coming out of training camp suffered contact injuries: Quarterback Aidan O’Connell (fractured wrist) and safety Lonnie Johnson Jr. (broken fibula).
“This is to compliment Alex Guerrero, Chris Cortez, and our entire athletic training staff,” Spytek said Wednesday. “We were very, very healthy.”
It’s worth noting that former Raiders defensive tackle Christian Wilkins disagreed with the team on how to handle recovery from a Jones Fracture injury
prior to his release, but that stemmed from a contact injury. The original injury also happened in the 2024 season, which was prior to Guerrero’s arrival. It’s unavoidable that additional contact injuries will crop up for the Raiders throughout the season. That’s just the nature of an incredibly physical sport. They view non-contact injuries, however, as a factor they can sway.
“Those are things that we feel that we can control,” Guerrero said. “And then, certainly, if there’s contact-related injuries that just come from just the nature of the sport itself, then our goal is to try to help get them through the rehab process as fast as possible so they can get back on the field in a safe and healthy way.”
Guerrero has had his fair share of critics over the years — from
medical professionals to former New England Patriots coach Bill Belichick — but the Raiders are betting that he can help their players stay healthy.
https://www.nytimes.com/athletic/6577801/2025/08/26/las-vegas-raiders-initial-53-man-roster-cutdown/
Although Brady had already won three Super Bowls, he still hadn’t reached his prime when he found himself struggling to overcome nagging elbow tendinitis following the 2005 season. Every time he tried to throw, he felt discomfort.
Brady turned to Guerrero, who he’d met through then-New England Patriots teammate Willie McGinest. Guerrero was able to remedy the issue through repeated exercises that worked to increase his flexibility.
“I got Tom through that,” Guerrero said. “I got Tom through a few other things that he was dealing with during the course of the season, and then we just bonded. We became best friends.”
It was a turning point for Brady that shifted his mentality when it came to preserving his body. He believes it helped him win two Super Bowls after the age of 40, and play until he was 45.
“The first treatment with Alex began my understanding of what pliability was,”
Brady said in a post to the TB12 brand website in 2020. “It has been an ongoing evolution. In effect, I replaced injury and rehab with pliability and prehab.”
This is the first time Guerrero has been formally employed by an NFL franchise, but it isn’t the first time he has implemented his program with a team. When Brady was with the Patriots, they opened a facility called the TB12 Sports Therapy Center right next to Gillette Stadium in 2013, and Guerrero treated numerous Patriots besides Brady. Guerrero was granted access to the team facility, traveled on the team plane and had sideline access. Criticism followed — most notably, “Boston Magazine”
ran a piece in 2015 calling Guerrero a “glorified snake-oil salesman.” His access to the team facility, reportedly, came to a halt in 2017 when Belichick
revoked his access. It was part of a fracturing with Brady that led the quarterback to ultimately leave and sign with the Tampa Bay Bucs in 2020. Guerrero came with him — they opened a TB12 center in Tampa just before Brady’s first regular season game with the Bucs — and it was a non-issue through Brady’s final season in 2023.
Spytek, who was a Bucs executive at the time, got to see Guerrero work firsthand. That, plus Brady’s personal experience, gave the Raiders confidence to hire Guerrero. And in his new role as a limited partner, Brady has been hands-on to ensure that it works.
“Much like he was when he was a player, he’s very focused on it,” Guerrero said. “A lot of deep thought goes into it. He’s very strategic in just the way that he thinks about things. I talk to him every day. … He’s really into it. He’s really engaged and is really interested in what we’re doing to help the players be able to perform their best and be able to do what they love doing for longer.”
Guerrero on the sideline during the Raiders’ preseason finale in Arizona. (Mark J. Rebilas / Imagn Images)
Guerrero is intentional about keeping his system malleable. In concert with the training staff, he’s helped put together customized training plans for every player on the roster.
“Every athlete comes in and they’re different heights and different weights and they move a little differently, so, a one-size-fits-all (approach) doesn’t really work well,” Guerrero said. “It’s always better when you are able to tailor a program that is specific to that athlete’s needs.”
When players initially come in, they’re evaluated to measure their physical baselines. From there, they’re continually evaluated to ensure they’re making progress. Along the way, the training staff makes tweaks as needed and makes sure to explain the adjustments to the players. The sense is the locker room has taken well to the process.
“When players understand the why to something, it’s really easy to get buy-in,” Guerrero said. “The guys have just been great. We haven’t really had any issues with anybody.”
Guerrero believes that his program has already changed how the Raiders operate for the better.
“The ideas of the manual therapy that we have brought in, they have really just adopted,” Guerrero said. “They have owned it, and they apply it and use it every single day. It’s made a really big difference.”
In the end, the results will speak for themselves.