Gilles Muller (LUX) catches a ball from the ball boy during the semifinal match. John Isner defeated Gilles Muller in three sets 7-5, 6-7, 6-1 in the Semifinal Match on Saturday in the Atlanta Tennis Championships at the Racquet Club of the South in Norcross, GA.

John Isner (USA) reaches for a backhand during the semifinal match. John Isner defeated Gilles Muller in three sets 7-5, 6-7, 6-1 in the Semifinal Match on Saturday in the Atlanta Tennis Championships at the Racquet Club of the South in Norcross, GA.