Drake and Joel Embiid may act like they hate each other's guts ... but it turns out the dudes are actually BROS behind closed doors, so says Sixers partner Michael Rubin!!
It always gets ugly between the 6 God and Embiid when Philly plays the Toronto Raptors ... with Drizzy and the All-Star trading jabs at any opportunity.
Most recently, Drake mocked Embiid for going scoreless last week -- clapping in Embiid's face and thanking him for racking up a goose egg on the score sheet.
TMZ Sports spoke with Rubin outside Madison Square Garden on Friday about the beef ... and he says while it looks legit on paper, it's all love when the cameras are off.
"It's all fun, they're good friends off the court," the billionaire businessman tells us.
Drake's gotten a lot of heat for his antics -- remember when he gave Raps coach Nick Nurse a mid-game back rub??
As for whether Rubin is a fan of the Raptors ambassador ... well, you'll have to watch the clip and hear for yourself.