What jersey number did Jason Witten wear with the Cowboys?

What jersey number did Antonio Gates wear with the Chargers? What position did Jason Witten primarily play? Jason Witten is best known for playing with which NFL team? Which college was Jason Witten playing for when he entered the NFL? What position did Mike Ditka primarily play? Mike Ditka is best known for playing with which NFL team? Which college was Mike Ditka playing for when he entered the NFL? What jersey number did Mike Ditka wear with the Bears?