Wimbledon runner-up Nick Kyrgios was expected to compete at this week's Atlanta Open, but pulled out at the last minute due to an injury.
The former World No.13 was scheduled to play German Peter Gojowczyk in his opening round match. However, Kyrgios came onto the court moments before the match was scheduled to begin, announcing he could no longer compete due to a lingering knee issue.
"First of all, I just want to say I’m extremely shattered that I’m not able to compete tonight,” Kyrgios said.
“I’ve won this tournament once and I’ve played probably some of the best tennis of my career. All I wanted to do was come out here and give you guys a show, obviously just see what I’m capable of."
Kyrgios was replaced by lucky loser Adrian Mannarino, who would go on to defeat Gojowczyk in straight sets.
Although Kyrgios withdrew from the singles event, the Cranberra native is hoping to have recovered enough to play in the doubles quarterfinals on Wednesday. The Aussie is pairing with compatriot Thanasi Kokkinakis, with whom he won his maiden doubles Grand Slam title at the Australian Open earlier this year.
Kyrgios is still scheduled to complete at the Citi Open next week, before participating at the US Open at the end of August.