This is the first of off-season workouts allowed by the Collective Bargaining Agreement
They may be voluntary, it may be just strength and conditioning but for the Arizona Cardinals it is significant because it means players back in the building to start working towards the 2015 season. Players are allowed back at the team facility Monday to begin strength and conditioning.
The only coaches allowed to attend these voluntary workouts are the strength and conditioning coaches. The workout is deemed as voluntary, however there are a number of players who have bonus money tied into participation in these voluntary workouts.