Day 1 of minicamp kicked off on Tuesday and the 49ers were missing a few key pieces. Joe Staley and Mike McGlinchey both missed the 1st day while dealing with their injuries. The veteran Staley is dealing with a pec strain and the 2nd year player McGlinchey is dealing with a knee problem. Joining them are the 1st picks of this year’s draft, Nick Bosa and Deebo Samuel. Bosa has been out since he hurt his hamstring in OTAs. Samuel is dealing with a hip issue that also kept him out the last week of OTAs.