French Open champion Roger Federer dramatically withdrew from the Halle Open tournament on Tuesday saying he was "overwhelmed and exhausted" after his Paris triumph. Federer beat Swede Robin Soderling in Sunday’s Roland Garros final to complete his Grand Slam haul and equal the record 14 ‘major’ wins by Pete Sampras. He traditionally uses the German follow-up event as his warm-up for Wimbledon which starts on June 22
