San Francisco starting quarterback Jimmy Garoppolo suffered a right shoulder sprain in Sunday's win over the Cowboys, head coach Kyle Shanahan told reporters Monday.By video, Garoppolo suffered the injury with just over three minutes left in the second quarter. The 30-year-old was hit on a pass rush and landed hard on his right elbow, with the force jarring up into his right shoulder.Dr. David Chao, ProFootballDoc, said this typically can be a rotator cuff contusion and swelling in the subacromial space or Bursa.It's likely the MRI showed no structural damage and it's possible Garoppolo got an injection of anti inflammatory medication to reduce swelling in the bursa, Chao said.The hope is that Garoppolo can maintain rotator cuff strength and return to throw in practice this week. Certainly the numbers would indicate something happened.Garoppolo was 11 for 14 for 133 yards in the first half, then 5 for 11 for 39 yards and a bad interception in the second half. After the game, Garoppolo said he had bad grip on the interception, which may have been related to the thumb injury he suffered Week 16. The 49ers hold their first practice of the week Tuesday. Chao said he expects Garoppolo to play through the injury, but the question is how accurate he can be with two injuries to his throwing arm.If Garoppolo can't play, rookie Trey Lance would get his fourth career start and his first playoff action.San Francisco will need all the offense it can muster against Green Bay's potent offense. The 49ers open the week as 5.5-point underdogs on the road against the Packers, according to FanDuel Sportsbook.