Has appeared in 52 games with 18 starts over four seasons with Miami (2010-12) and Oakland (2013), grabbing seven receptions for 96 yards (13.7 ypr)... Last season (2013), Mastrud started 12-of-16 games played hauling in six receptions for 88 yards (14.7 ypr).
A look back through the Bears 2014 Preseason games.
Go behind the scenes of Jay Cutler's Sports Illustrated photo shoot.
Quarterback Jay Cutler sits down to talk with Lou Canellis to discuss the Bears' upcoming season and dealing with expectations.
Have you always wanted to run out of the tunnel at Soldier Field? See what the players see on game day on Bears InSight.