Lebron James could find himself in the middle of a diplomatic crisis

Prince William and Kate Middleton were courtside at the Brooklyn Nets vs. Cleveland Cavaliers game and in between the third and fourth quarter, the royals met up with Beyonce and Jay Z

But what happened after the game is getting all the Brits upset. After that Will and Kate met up with LeBron James, who gifted them with a tiny jersey for their son George.

Lebron put his arm around Kate and That is a Big No No . The three posed for a photograph and James put his right hand on the Duchess of Cambridge's right shoulder.

According to protocol in Britain, a commoner , which is just about everyone else,is not supposed to touch members of the royal family — even if it is an innocent gesture.

The official website of the British Monarchy says "there are no obligatory codes of behavior" for meeting a member of the royal family, "but many people wish to observe the traditional forms."