Andy Murray happy with 'tough' Miami Open win

Andy Murray says it's been a good week for him after he won the Miami Open and moved up to number two in the world rankings.

The Scot beat David Ferrer 2-6 6-4 7-6 (7-1) in the final, which he describes as a "tough" victory.

Murray adds that he is focused on "improving and going forward" ahead of the start of the clay-court season.