Andy Murray calls tennis scheduling a 'total mess'

Defending US Open champion Coco Gauff said earlier this summer that late finishes are not good for players.

Zheng Qinwen, of China, reacts after defeating Donna Veki, of Croatia, during the fourth round of the U.S. Open. Picture: AP Photo/Adam Hunger

Andy Murray has called the scheduling of the US Open a "total mess" after the latest ever finish of a women's match on Sunday night.

Olympic champion Qinwen Zheng won her gold-medal rematch with Donna Vekic in a war of attrition, finally getting the job done at 2.16am.