SANTA CLARA — Defensive end Nick Bosa has a low-grade hamstring strain and won’t participate in the 49ers remaining three weeks of their offseason program, a team spokesman said Thursday.
Bosa, the No. 2 overall draft pick last month, sustained a Grade 1 strain midway through Tuesday’s organized team activities, only the second full-team session since rookies joined veterans on the field.
Bosa got hurt engaging one-on-one with an offensive lineman then watched the rest of practice and eventually walking off on his own to the locker room.