Surtain went down with a non-contact injury late in the second quarter and needed help getting the the Denver locker room. He was seen grabbing at his calf and foot area. Hopefully for the Broncos this injury is not a worst-case scenario for one of the NFL’s best cover corners. Brock Purdy and the Niners should have an easier time moving the ball if Surtain is sidelined for the remainder of this game.