“Voluntary” is the operative term here. Albert doesn’t have to be at these workouts, the first two weeks of which are conditioning-focused per the CBA. Also, it’s possible Albert could show at any time. And if he doesn’t, it’s not as if he doesn’t figure as one of the Chiefs’ five best offensive linemen — assuming he’s not traded.
Albert has already signed his franchise tender, but he indicated to USA Today in March that he wants a longer “commitment” than just one year. Moreover, he confirmed that he sees himself as a left tackle.
It’s notable that Albert isn’t at workouts. However, it’s understandable, considering that any injury wouldn’t help his prospects for a longer-term deal.
Also, it’s well within his rights.