Andy Murray blew an early lead as he crashed to a 4-6 6-3 6-2 defeat against Aslan Karatsev in the last 16 of the Zhuhai Championships in China.
A tearful Andy Murray revealed he was forced to miss his grandmother's funeral as he helped Great Britain to a Davis Cup victory over Switzerland on Friday night.
The US Open has no plans to alter its scheduling to prevent matches from finishing in the early hours.
Andy Murray came up just short in a three-hour marathon against world number nine Taylor Fritz in the last 16 of the Citi Open.
Andy Murray suffered more Wimbledon heartache with a five-set defeat by Stefanos Tsitsipas in their delayed second-round clash.
Stefanos Tsitsipas survived a five-set thriller against Dominic Thiem to set set up a second-round clash with British hopeful Andy Murray at Wimbledon.