Rafael Nadal, winner of 22 Grand Slam titles, to retire from tennis

Spaniard Rafael Nadal, one of tennis's greatest champions and the unquestioned clay court specialist of all time, announced Thursday he will retire from the sport at season's end.

Rafael Nadal, winner of 22 Grand Slam titles, to retire from tennis
A cleanshaven man in athletic gear embraces a trophy while smiling widely.

Spaniard Rafael Nadal, one of tennis's greatest champions and the unquestioned clay court specialist of all time, announced Thursday he will retire from the sport at season's end.