The Denver Broncos traded cornerback Cass Vaughn to the Indianapolis Colts in exchange for fullback Chris Gronkowski. Vaughn had been pushed down the depth chart with the signings of Drayton Florence and Tracy Porter. Gronkowski appeared in seven games with the Colts last season after playing in 14 games with the Dallas Cowboys in 2010. He did not have a carry or a reception with the Colts. His brother Dan played for the Broncos in 2010.