Magnus Carlsen, the world's top chess player, has quit the World Rapid Chess Championship being held in New York after refusing to change out of jeans to abide by a dress code.
The Norwegian chess grandmaster was fined $200 on Friday and given a warning by the International Chess Federation (FIDE), the governing body for international chess championships, to change into acceptable attire or be disqualified.
Carlsen told chess channel Take Take Take that he'd been at a lunch meeting and arrived at the championship wearing a shirt, blazer and jeans and that he "didn't even think about" changing out of his jeans.
After receiving the fine, "I said I'll change tomorrow," Carlsen said. "But they said you have to change now. It became a matter of principle for me so here we are."