Roger Federer suffered a setback in his preparations for Wimbledon after crashing out of the second round of the ATP grass court tournament in Halle on Wednesday. 

Federer, who will bid to win a ninth title at Wimbledon which starts June 28, suffered a shock 4-6, 6-3, 6-2 defeat to Canadian Felix Auger Aliassime, 20, who is almost half Federer’s age.