Roger Feder volley at the net during a match of the Gerry Weber Open semi-finals against Ivo Karlovic in Halle (Westfalen) on June 20, 2015. (Photo by Miroslav Dakov/NurPhoto) (Photo by NurPhoto/NurPhoto via Getty Images)
Roger Feder volley at the net during a match of the Gerry Weber Open semi-finals against Ivo Karlovic in Halle (Westfalen) on June 20, 2015. (Photo by Miroslav Dakov/NurPhoto) (Photo by NurPhoto/NurPhoto via Getty Images)