49ers’ Week 1 practice: Status reports on Aiyuk, McCaffrey, Williams

SANTA CLARA — The 49ers’ Super Bowl aftermath, an emotionally draining offseason fraught with contract issues and a harrowing life-threatening incident, gave way Tuesday morning to regular-season practice.

Players reconvened after a four-day break to take part in an hour session, and it was a who’s-who of stars in attendance.

Here is a status report regarding key persons of interest:

Running back Christian McCaffrey: His wrists were taped, his white cleats looked fresh, and...