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 (June 16).

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 20-year-old Canadian Felix Auger Aliassime, who is almost half Federer's age.

(With input from agencies)