Former Las Vegas Raiders head coach Jon Gruden has seen his share of quarterbacks over his nearly four decades in coaching, so when he stated one current NFL quarterback reminds him of San Francisco 49ers legend Joe Montana,

Gruden visited Detroit Lions training camp Monday in Allen Park, where his good friend and protege John Morton is the team's new offensive coordinator. Gruden reiterated his desire to return to the sidelines as a coach.

Jon Gruden has pretty much seen it all over the course of his three-plus decades in pro football and the former Super Bowl-winning head coach had some extremely high praise for one of the NFL's current QBs.