Andy Murray opened his ATP World Tour Finals campaign with a convincing win over Spain's David Ferrer in London.
The Briton won 6-4 6-4 at the O2 Arena and will next play the winner of the evening match between Stan Wawrinka and Rafael Nadal.
Another victory on Wednesday would ensure Murray ends the year as world number two for the first time.
The Scot's season will continue next week as Great Britain take on Belgium in the Davis Cup final.
Murray makes switch from clay
After some uncertainty over whether Murray would sacrifice his place in London to remain healthy for Belgium, the Scot was in committed mood once he stepped out into the O2 Arena.