McIlroy one win away from top spot after defeat of Westwood

Rory McIlroy pulled off a remarkable win over Lee Westwood in Tucson today and was left needing to beat American Hunter Mahan to become world number one for the first time.

The two European stars met in the semi-finals of the Accenture Match Play Championship and Westwood, also with the chance to dethrone Luke Donald at the top of the rankings, went three-up after only four holes.