Tennis: Mit 45 Jahren: Doppel-Ass Julian Knowle beendet seine Karriere | Kleine Zeitung
Australian Open 2021: Knowle loses on comeback, Oswald in the second round · tennisnet.com
Julian Knowle - Wikipedia
Julian Knowle | Overview | ATP Tour | Tennis
Vorarlberger Tennis-Spieler Julian Knowle muss nach Ellbogen-Verletzung operiert werden - Hard | VOL.AT
Tennis - AEGON International - Devonshire Park, Eastbourne - 14/6/09 Julian Knowle of Austria in action during his third round qualifying match Mandatory Credit: Action Images / Henry Browne Livepic Stock Photo - Alamy
Austria's Julian Knowle hits the ball during his first round match... News Photo - Getty Images