McIlroy working on ruthless edge

Rory McIlroy has not forgotten an important lesson as he sets off at Wentworth today to try to add one of Europe’s biggest titles to his first victory in America earlier this month.

Playing in the group behind the 21-year-old from Northern Ireland in the opening two rounds of the BMW PGA Championship is Lee Westwood, the stablemate who stopped him being crowned the European Tour’s new number one last season.