Mardy Fish has announced that he will not be taking part in this year's Wimbledon.
The American, who is currently ranked 43rd in the world, has played just three matches since pulling out of the 2012 US Open after being diagnosed with a heart arrhythmia.
The 31-year-old tweeted: "Guys, unfortunately I won't be at Wimbledon this year. Bummed. Will be starting with Team Tennis in Sacramento and Atlanta on ATP Tour."
Fish reached the last 16 at SW19 last year, before being knocked out by Jo-Wilfried Tsonga.
