Larry Fitzgerald Hoping Aaron Donald Doesn't Retire After Super Bowl Win

Larry Fitzgerald and Rams fans are all in the same boat following the Super Bowl ... as in, they're all now praying Aaron Donald doesn't walk away from the game after the big win.

The legendary wide receiver told TMZ Sports following L.A.'s victory that he's hoping like hell Donald doesn't now retire ... saying, "That would be a big blow to the league."

Of course, nobody even dreamed it could be a possibility before Sunday ... but Rodney Harrison reported on the broadcast in the leadup to the game that it could definitely happen.

"He also told me this," Harrison said of a conversation with Donald before the Super Bowl, "if he wins a Super Bowl, there's a strong possibility that he could walk away from the game and retire."

Donald sidestepped questions about his future after the win -- appearing to reveal he is, in fact, considering the option -- but Fitzgerald is clearly pleading for it to not go down.

"I hope that's not the case, man," he told us.