It has been a rocky beginning to Nick Bosa's 49er tenure.

"Basically, it's a minor high-ankle sprain," Shanahan said.

Kyle Shanahan with the latest on Nick Bosa. Shanahan hopeful that Bosa will be ready for Week 1 vs. Buccs on September 8. #49ers pic.twitter.com/QkRPoiW1EQ

— 95.7 The Game (@957thegame) August 8, 2019

"But there's no such thing as a minor high-ankle sprain because we know those are a much bigger deal than low ones, but we're hoping for Week 1."