LONDON, Feb. 17 (UPI) -- Roger Federer, the No. 2-ranked player in the world, has withdrawn from next week's Dubai tournament and a Davis Cup series because of a back injury.
Federer had been expected to play in the $2.2 million Dubai Tennis Championships next week and in the Davis Cup first-round match in March for Switzerland against the United States but he said a back injury last fall hasn't completely healed.