LONDON, UNITED KINGDOM: Switzerland's Roger Federer hits a forehand during his match against Germany's Nicolas Kiefer during the AXA Cup tennis tournament in the London Arena Tuesday 22 February. Unseeded Federer defeated second-seeded Kiefer 6-2, 6-3. Federer will meet Goran Ivanisevic in the second round. (ELECTRONIC IMAGE) (Photo credit should read ADRIAN DENNIS/AFP via Getty Images)