TMZ Sports: Dwyane Wade ... PANTS ON FIRE!!!

Dwyane Wade's baby explanation seems to be blowing up in his face ... all thanks to Gabrielle Union's Instagram account, which could prove they weren't really "on a break" when he knocked up another woman.

Plus, a real-life "Jerry Maguire" situation is unfolding with Teddy Bridgewater ... with sports agents scrambling so hard to sign the top NFL prospect, they're driving his mom crazy!