The 31 - year - old Swede has not recovered sufficiently to return to the sport .
The 31 - year - old Swede became the first man to beat Rafael Nadal at the French Open in 2009 .
The 31 - year - old Swede , who became the first man to beat Rafael Nadal at the French Open in 2009 , has not recovered sufficiently to return to the sport .