The Broncos have traded 24-year old cornerback Alphonso Smith to the Lions for 25-year old TE Dan Gronkowski.  Smith played in 15 games for the Broncos last season in which he had 14 tackles, 1 tackle for a loss and he defensed 3 passes.  Smith also returned 10 punts for 47 yards (4.7 avg) and 4 kickoffs for 75 yards (18.8 avg).  The Broncos were very disappointed in him and they considered just releasing him.  Dan Gronkowski played in 2 games as a rookie for the Lions last season and he caught 1 pass for 4 yards.