According to the official Twitter account of the 49ers, TE Vernon Davis did not practice again on Thursday because of an ankle injury as the team prepares for Sunday's game against the Broncos in London. The team's receiving yardage leader this season also missed Wednesday's practice.
QB Alex Smith and C Eric Heitmann are out for Sunday. Also, rookie RB Anthony Dixon, CB Nate Clements and CB Tarell Brown were limited in Thursday's practice.
On a positive note, LB Ahmad Brooks had full participation.