CHAMPIONSHIP MATERIAL!! Rumor Has It . . . That Dwyane Wade PROPOSED TO GABBY UNION Last Night After Winning The Championship!!! (Details)

: just received word from a friend of a GIRLFRIEND of a Miami Heat player that D Wade PROPOSED to Gabby Union last night at Story Nightclub in South Beach.

According to the insider, the NBA SUPERSTAR popped the question in front of a few teammates (including his best friend LeBron) and close friends. Our snitch was NOT there to see D Wade get down on one knee personally. But we’re told that EVERYONE IN VIP was talking about it.

The story is developing . . .