https://www.mercurynews.com/2019/08/08/will-49ers-bosas-ankle-injury-keep-him-out-week-1/

SANTA CLARA — Nick Bosa’s debut in a 49ers uniform is on hold until the regular season, and uncertainty now looms whether the rookie defensive end will be healthy for the Sept. 8 opener at Tampa Bay.

“We’re hoping for Week 1. We think he has a good chance for it but can’t guarantee that,” coach Kyle Shanahan told KNBR 680-AM before Thursday’s practice.