Former world number one Andy Murray says he will play no part in this month's US Open.
The 2012 champion had intended to play doubles in New York, but says "doubles is done for me for the time being".
Instead, he will play singles at next week's ATP event in Winston-Salem, before considering entering a tournament on the Challenger Tour during the US Open.
"I'm not going to play doubles at the US Open," Murray told BBC Sport.
"My goal is to get back playing at the level that I want to on the singles court, and I've decided that I need to focus all my energies on that right now," Murray added after he and Feliciano Lopez reached the doubles quarter-finals in Cincinnati.