Roger right back in the groove

Roger Federer was back in the groove at the ATP World Tour Finals as the six-time champion defeated Canada's Milos Raonic 6-1, 7-6 (0) on Sunday.

Federer last won the prestigious season-ending event at London's O2 Arena in 2011 and the world No 2 looks in the mood to add another title to his collection on the evidence of a powerful performance, featuring 24 winners, that avenged his loss to Raonic in the Paris Masters quarterfinals last month.

Raonic, 23, is making his Tour Finals debut as the first player born in the 1990s to compete in the event after a breakthrough year that included a run to the Wimbledon semifinals. But at 33, Federer has been in age-defying form this year and arrived as the oldest player to qualify for the tournament in his record 13th consecutive appearance.