Is it the kind of playful gesture that teammates - or future teammates - do to each other?

OK, let's not go there. As they exited the court in Charlotte after NBA All-Star practice on Saturday, Kyrie Irving and Kevin Durant - who Sunday night will be teammates as the first two picks on Team LeBron - were signing jerseys handed down, or tossed, by fans.

When Kyrie was given a KD Warriors' jersey, he playfully tossed it ahead to Durant. When Durant got a Kyrie Celtics' jersey, the Golden State star performed what looked like a pretty good Gronk spike with it at the Celtics' guard.


TNT was all about the speculation with this tweet and video:


Just a couple of potential free agents and teammates - at least for tomorrow - having fun. 

Click here to download the new MyTeams App by NBC Sports! Receive comprehensive coverage of your teams and stream the Celtics easily on your device.