49ers' Tatum Bethune: Done for season

Sam Francisco head coach Kyle Shanahan said Monday that Bethune (groin) won't be available for the 49ers' entire postseason run, David Lombardi of SFStandard.com reports.

Bethune's status for San Francisco's wild-card round matchup was already up in the air after he exited in the fourth quarter of Saturday's 13-3 loss to the Seahawks. Upon further examination, the 24-year-old has been diagnosed with a groin tear that may require surgery. With Dee Winters (ankle) also uncertain to play in Sunday's wild-card game against the Eagles and with Shanahan ruling out Fred Warner (ankle) for the first two rounds of the playoffs, Eric Kendricks is expected to take on a full-time role at linebacker. Garret Wallow and Curtis Robinson -- who was inactive in Week 18 -- could also be called upon to handle more prominent roles.