Westwood to take a month off
Lee Westwood confirmed he would not compete for about a month in order to allow his injured calf to heal after missing the chance to take the world number one spot from Tiger Woods.
Westwood needed a top-two finish at the Dunhill Links Championship to end the American's long run at the top of the rankings but could only manage tied 11th on seven under.
I haven't had a chance to get it healed," Westwood, who has been troubled by the injury since July, said.
"I tried my hardest to get back to the Ryder Cup fully fit last week and got back to 80 per cent, which I thought was good enough... with the adrenaline and all that.
"That was a tough week back and this is not an easy week, six-hour rounds and only two days off between finishing the Ryder Cup and starting here.
"So it was never going to be right, and it just got progressively more agitated and achy as the week's gone on," said the Briton, who returned from a six-week break to play in Europe's victorious Ryder Cup team against the U.S. in Wales.
Westwood, 37, will not defend this week's Portugal Masters and the lay-off also spoils any hope he has of retaining his title of European number one.
Westwood indicated if this further rehabilitation was successful he was hopeful of contesting the WGC-HSBC Champions event in Shanghai which starts on November 4.