Andy Murray opened his ATP World Tour Finals crusade with a persuading win over Spain's David Ferrer in London.

The Briton, 28, won 6-4 6-4 at the O2 Arena and will next play the victor of the night match between Stan Wawrinka and Rafael Nadal.

Another triumph on Wednesday would guarantee Murray closes the year as world number two interestingly.

The Scot's season will proceed one week from now as Great Britain tackle Belgium in the Davis Cup last.

"It was an intense match with a considerable measure of long energizes," said Murray. "He contended energetically right to the end and made it to a great degree troublesome.

"He didn't serve and in addition he can and I played somewhat better toward the end of both sets, and that got me the win."