Big Moments The Key For Andy Murray

The British fifth seed claimed a 6-3 7-5 victory over Canada's Raonic in London for his first win in Group B.

Murray - who lost his opening match to Kei Nishikori at the weekend - was delighted to be back on the winners' list at the event, which he missed last year after undergoing back surgery.

Murray faces the unbeaten Roger Federer in his final pool match, and could advance even if he loses.

And the 27-year-old is excited for the clash despite losing their last two meetings.

Murray added.