Roger Federer served notice of his determination to claim a record 15th Grand Slam crown by firing 23 aces as he shot down Robin Soderling to reach the Wimbledon quarterfinals on the day the Centre Court roof was closed. Federer triumphed 6-4 7-6 7-6 in a repeat of the recent French Open final win that saw him defeat Swede Soderling and equal Pete Sampras’s haul of major titles. “Today was pretty much a serving contest,” admitted Federer of a match which featured just one break of serve
