American tennis player Mardy Fish tells USA Today he recently had a medical procedure to correct a heart problem.
Fish, who hasn't played since late March after being diagnosed with fatigue, says he had a procedure called cardiac catheter ablation on Wednesday to deal with misfiring electrical pulses in his heart. He is recovering at his home in Los Angeles.
Fish, who at No. 10 is the highest-ranked American on the ATP Tour, tells USA Today that at times he would wake up with his heart racing as if he'd been running sprints.
He said: ''It felt like my heart was going to jump out of my chest.''
Fish says he can resume light training soon and hopes to play at the grass-court tune-up for Wimbledon that begins June 11.