The Fitzmagic has officially run out -- recently retired NFL quarterback Ryan Fitzpatrick tells TMZ Sports he's really done playing football for good ... even if a team in need comes calling.
39-year-old Fitzpatrick decided to walk away from the game earlier this offseason ... ending his career after 17 years in the league.
Of course, there's a history of guys retiring before getting the itch to come back -- we're looking at you, Favre and TB12 -- but Ryan says that's not the case for him.