O’Connell leans heavily on input from Tyler Williams, the team’s vice president of player health and performance. They map out workloads for every practice down to how many reps in each period. Practices typically have eight to 10 periods split among individual position drills and full-team sessions.

Justin Jefferson left practice Thursday with a left hamstring strain, but the injury may not be anything to worry about. An MRI revealed a “mild strain” in the Vikings’ star wide receiver’s left hamstring after he removed himself from training camp and is expected to be re-evaluated next week, according to ESPN.

The Minnesota Vikings have gotten a massive scare regarding wide receiver superstar Justin Jefferson. The star pass catcher has suffered a hamstring strain and is set to be held out of practice until next week. More news: Pete Carroll Breaks Silence on Raiders Shocking Release of Christian Wilkins

Welcome to The Athletic's live coverage of NFL training camps. Our reporters are scattered across the league providing the latest news, notes, happenings and more as preparations for the 2025 season continue.

The latest updates, highlights and news as the Tennessee Titans take the practice field on Day 3 of 2025 NFL training camp.

Seattle Seahawks quarterback Sam Darnold singed a three-year $100 million contract this offseason. The former USC Trojans star was coming off a career best 2024

Minnesota Vikings All-Pro wide receiver Justin Jefferson has officially been ruled out of the team’s training camp practice due to what the team called a “mild” left hamstring strain, and is set to be re-evaluated sometime next week.

The first practice of training camp was over and most of the Vikings players had retreated to the locker room, except for a few stragglers who wanted to get in more individual work. Naturally, the fifth-oldest and second-longest-tenured player on the roster was among the last to leave,