From Trent Dilfer’s blog

Before Wednesday's practice, San Francisco 49ers head coach Kyle Shanahan spoke with reporters. The team is preparing to face the NFC East champion Dallas Cowboys this weekend in the opening round of the playoffs. Shanahan says quarterback Jimmy Garoppolo, who is still dealing with a right thumb injury, will be limited in practice. However, his starting left tackle, Trent Williams (elbow), will not practice. The coach is still hoping that Williams can play on Sunday against the Cowboys. "Trent is better today than he was on Sunday," Shanahan said. The 49ers are opening the practice window for running back Trenton Cannon, who suffered a concussion on December 5 and was placed on injured reserve on December 11. Others who will not practice

Trent Williams did not practice on Wednesday. His San Francisco 49ers are preparing to play the NFC East champion Dallas Cowboys on Sunday during the opening round of the playoffs. Williams did not play during the 49ers' regular-season finale against the Los Angeles Rams. An elbow injury kept him sidelined. Colton McKivitz started at left tackle in Williams' place. According to one report, Williams has no intention of missing another game. ESPN's Ed Werder spoke to the veteran offensive lineman and said Williams made it clear that he intends to play this weekend against the Cowboys. "He made it clear he intends to play Sunday against the Cowboys, believing a brace and adrenaline will offset any remaining issues with the elbow," wrote

The San Francisco 49ers are preparing for their playoff contest against the Dallas Cowboys on Sunday at AT&T Stadium in Arlington, Texas. Nothing changed from what head coach Kyle Shanahan told reporters before practice. The 49ers continue to be cautious with their quarterback, Jimmy Garoppolo. He was limited. This is so last week, but here's Jimmy Garoppolo throwing in practice with a wrap on his bum right thumb. #49ers pic.twitter.com/ZBXMxKsV8M— Eric

The San Francisco 49ers kicked off their second practice of the week, and Pro Bowl tackle Trent Williams was on the field with his teammates. The 49ers are preparing to open the playoff on the road this weekend against the Dallas Cowboys, and Williams is dealing with the elbow injury that forced him to be inactive on Sunday against the Los Angeles Rams. #49ers LT Trent Williams (elbow) IS on the field during early portion of practice. pic.twitter.com/x6gF0AqMaI— Nick Wagoner