BASEL, Switzerland (AP) — Roger Federer has had surgery on his right knee and says he will miss the French Open and several other tournaments. The 20-time Grand Slam champion wrote on his Facebook page that his knee “has been bothering me for a little while” so he "decided to have arthroscopic surgery in Switzerland yesterday.” He will skip four tournaments prior to the French Open. Federer could potentially return to play at a grass-court tournament in Germany on June 15. He was won that tournament in Halle 10 times. Wimbledon starts June 29.

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