The Facts: Following up on a previous item. ... The 49ers are preparing for their Wildcard playoff contest against the Cowboys on Sunday in Dallas. The good news for the 49ers is that OT Trent Williams and Mitchell returned to practice after missing Wednesday's session.

Diehards Line:Mitchell played on Sunday against the Los Angeles Rams, leading the team with 85 rushing yards, which Williams was inactive. Meanwhile Jimmy Garoppolo, who was limited on Wednesday, he was a full participant on Thursday. Garoppolo is attempting to play through a right thumb injury. He started against the Rams and is expected to do so against the Cowboys this weekend.