Jason Witten, Dallas Cowboys and Greg Olsen, Carolina Panthers

Cowboys tight end Jason Witten has missed just one game in his 15-year career. Witten shares the secret of how he's been so durable and mentally tough to stay on the field, on Dallas' annual Thanksgiving game, and on lessons learned from Bill Parcells, his first head coach with the Cowboys, and his grandfather, who was also his high school football coach. 

Panther tight end Greg Olsen on how close he is to coming back from his foot injury for the Panthers’ playoff run, on why he is trying to start a new children’s heart-health facility in Charlotte, and on becoming one of the first active NFL players, in-season, to do network color on an NFL game when he’ll work for FOX during the Panthers’ bye week on Sunday.