World No. 1 Magnus Carlsen quit the World Rapid Chess Championship on Friday after he refused to change out of the jeans he was wearing, according to the International Chess Federation (FIDE).

In a now-settled dispute with opponent Hans Niemann, Carlsen quit a tournament in 2022 after Niemann beat him, before going on to accuse his American rival of cheating. Niemann had denied the allegations, and even said he would "strip fully naked" to prove his innocence.

Magnus Carlsen, the world's top-rated chess player, refused to change out of jeans at the World Rapid Championship in New York. He was disqualified, and subsequently withdrew from the Blitz tournament too.