SANTA CLARA — Joshua Garnett’s disappointing season and perhaps his 49ers tenure are in jeopardy following thumb surgery last week.
It’s unlikely he’ll play in a cast Sunday when the 49ers (2-8) return from their bye and visit the Tampa Bay Buccaneers (3-7), and it’s unknown whether Garnett, a 2016 first-round draft pick from Stanford, will be allowed to play any of the remaining six games.
Of course, he has barely played this season, and he didn’t play at all last season.
“I know a lot of. . .