Niners LB Fred Warner fractured and dislocated his right ankle in Sunday's loss to the Buccaneers, HC Kyle Shanahan announced after the game. He'll have surgery and miss the rest of the season.

Niners LB Fred Warner (ankle) is officially active for today's game against the Cardinals, as expected. CB Isaac Yiadom (thigh) is also active after entering the day questionable.

Niners LB Fred Warner is expected to play through his ankle sprain today against the Cardinals, according to multiple reports. There might still be some risk of limited playing time, but this early report indicates that he's better than a game-time decision. He appeared to be moving well in his Friday return to practice. I moved Warner back up the Week 5 LB rankings on this morning's news. He'll obviously carry some re-injury risk -- but also plenty of fantasy upside. Weigh both vs. your other IDP lineup options.

San Francisco 49ers DE Nick Bosa is officially questionable for Saturday night's game against the Packers after suffering a concussion in the Wild Card win at Dallas. HC Kyle Shanahan said Thursday, though, that Bosa's chances of playing are "looking good," according to ESPN's Nick Wagoner. LB Fred Warner, meanwhile, carries no injury status into Saturday's game after hurting an ankle against the Cowboys.

The 49ers deemed LB Fred Warner (hamstring) doubtful for Sunday's game at Seattle. The only surprise there is that he has any chance of playing. Initial reports projected him to miss a week or 2 with the injury. Expect the Niners to be without their star LB, though. LB Dre Greenlaw (groin) has been ruled out. LB/S Marcell Harris (concussion) is questionable. The depleted LB corps helps the outlook for Seahawks TE Gerald Everett.

ESPN reports that the 49ers expect LB Fred Warner to miss 1-2 weeks with the hamstring strain he suffered in Sunday's win over the Vikings. Fellow LB Dre Greenlaw is day-to-day, Cam Inman of the San Jose Mercury News reports. That leaves Azeez Al-Shaair as the best bet to lead San Francisco LBs in playing time for the Week 13 clash with Seattle.

Niners LB Fred Warner left Sunday's game against the Vikings with a hamstring injury. Keiana Martin of the team website reports that Warner will have an MRI on Monday.