Tennis: Federer sees off Raonic in Tour Finals opener

Roger Federer opened his challenge for a seventh ATP Tour Finals crown in dominant fashion with a 6-1, 7-6 (7/0) victory over Canada's Milos Raonic on Sunday.

Federer last won the prestigious season-ending event at London's O2 Arena in 2011 and the world number two 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 quarter-finals last month.