Former world number one Andy Murray has brought his truncated season to a premature end, pulling out of the China Open in Beijing after suffering an ankle injury during his quarter-final defeat at the Shenzhen Open.
The 31-year-old Briton is battling to regain top form and fitness following hip surgery in January and said that he was "very sorry" to miss the China Open.
The tournament -- which begins this weekend -- has been hit by several high-profile pull-outs with Rafael Nadal not involved because of injury, Roger Federer saving himself for Shanghai and Serena Williams all absent.
World number three Novak Djokovic is also not involved despite being offered a wildcard.