Had this play in a scrimmage. First and goal for A at B's 3 yard line. A1 is running into the line and fumbles the ball at the 2 yard line and the ball bounces into the end zone. In a scramble to recover at the end line, B3 who has his feet out of bounds beyond the end line, recovers the ball that is still in the end zone. I know that when ball is touched by a player who is out of bounds, it becomes dead. Would this be a touch back or am I missing something?