Matty Ice is putting his career on ice for good -- former NFL MVP Matt Ryan is officially retiring from professional football after 15 seasons.
The Atlanta Falcons great -- who played all but one season with the organization -- released a heartfelt goodbye to the game on Monday ... saying it was time to hang up the helmet.
"Today, 16 years after being drafted, my childhood dream has officially come to an end," Ryan said.
"I'm honored to retire as a Falcon.