The Cardinals have officially opened training camp and already the team is getting bad news on the injury front. According to Ian Rapoport of NFL Network, rookie first-round defensive tackle Walter Nolen suffered a calf injury that will knock him out for most, if not all, of training camp. 
There are a few key points to this situation that make details very important. Rapoport reports that the injury occurred at the team facility, and ESPN’s Adam Schefter clarifies that Nolen was injured while getting ready for training camp, meaning he wasn’t participating in a team workout. Because of the NFL’s Collective Bargaining Agreement, there are strict limitations on number of practice and rest days, daily time limits, and when practices can include equipment and contact.
The injury happening at the facility, with training camp having commenced, would in most cases be a clear-as-day football situation that would land Nolen on the active/physically unable to perform list. Schefter’s clarification, though, specifies that Nolen was reportedly training on his own in preparation for the start of camp. We’ve seen situations in the past where teams have argued about what constitutes a football activity, and with Nolen working out on his own, there’s a chance he may have been placed on the active/non-football injury list, on which he would not be entitled to receive his salary.
Instead, Nolen lands on the active/PUP list, per Rapoport, along with outside linebacker BJ Ojulari and defensive tackle Bilal Nichols. Ojulari is apparently still working his way back from a torn ACL he suffered a couple weeks into last year’s training camp, costing him the entire 2024 season. Nichols, at least, got to the regular season before suffering a season-ending stinger in mid-October.
Any of the three players will be able to come off the list by passing a physical. Nolen’s timetable for return, though, runs right up to the start of the regular season. He may be able to get better in time to play in Week 1, but most, if not all, of his rookie training camp will be spent recovering instead of getting adjusted to play at the NFL level. It’s an unfortunate development that may mean he has to ease his way into his rookie campaign, but it’s good news that there’s a chance he may not miss any games.