Dallas Cowboys coach Jason Garrett said guard Xavier Su'a-Filo was undergoing surgery as he was holding his news conference Monday afternoon.
"Su'a-Filo is having surgery right now for a broken bone in his lower leg," Garrett said.
Su'a-Filo was injured in the second half of Sunday's game against the Philadelphia Eagles. He was taken out on a stretcher and did not return for the rest of the game.
Joe Looney has replaced Su'a-Filo in the lineup. "We do believe we've got to get another offensive lineman in here thought," Garrett said.
Su'a-Filo joins Leighton Vander Esch on the injured reserve list.