![Lucas Dlouhy, left, and Pavel Vizner, right, of Czech compete against Simon Aspelin of Sweden and Julian Knowle of Austria during a match of Tennis Ma Stock Photo - Alamy Lucas Dlouhy, left, and Pavel Vizner, right, of Czech compete against Simon Aspelin of Sweden and Julian Knowle of Austria during a match of Tennis Ma Stock Photo - Alamy](https://c8.alamy.com/comp/W9HBA6/lucas-dlouhy-left-and-pavel-vizner-right-of-czech-compete-against-simon-aspelin-of-sweden-and-julian-knowle-of-austria-during-a-match-of-tennis-ma-W9HBA6.jpg)
Lucas Dlouhy, left, and Pavel Vizner, right, of Czech compete against Simon Aspelin of Sweden and Julian Knowle of Austria during a match of Tennis Ma Stock Photo - Alamy
![Tennis - French Open - Roland Garros, Paris, France - 3/6/10 Austria's Julian Knowle during the Mixed Doubles Final Match Mandatory Credit: Action Images / Paul Childs Stock Photo - Alamy Tennis - French Open - Roland Garros, Paris, France - 3/6/10 Austria's Julian Knowle during the Mixed Doubles Final Match Mandatory Credit: Action Images / Paul Childs Stock Photo - Alamy](https://c8.alamy.com/comp/2EFPPFE/tennis-french-open-roland-garros-paris-france-3610-austrias-julian-knowle-during-the-mixed-doubles-final-match-mandatory-credit-action-images-paul-childs-2EFPPFE.jpg)
Tennis - French Open - Roland Garros, Paris, France - 3/6/10 Austria's Julian Knowle during the Mixed Doubles Final Match Mandatory Credit: Action Images / Paul Childs Stock Photo - Alamy
![Julian Knowle (Oesterreich) Tennis Herren US Open 2007, Grand Slam, ATP Tour, Finale, Endspiel Einzelbild Julian Knowle (Oesterreich) Tennis Herren US Open 2007, Grand Slam, ATP Tour, Finale, Endspiel Einzelbild](https://www.imago-images.com/bild/sp/0003094527/w.jpg)