European money-list leader Henrik Stenson has revealed that he is struggling with a wrist injury ahead of the season-ending DP World Tour Championship.
The Swede, who finished tied for seventh in the Turkish Airlines Open, said that he may withdraw from the Pro-am event in order to compete for the £5m prize in Dubai.
"I'm going to speak to my physio and see what he wants," the 37-year-old told reporters. "Maybe if I pull out of the pro-am and give it two days of full rest, maybe I can do a light practice session on Wednesday and go.
"It's obviously going to affect my preparations but it's been like that for the last three weeks so I've just got to do the best I can.
"Long-term I hope I'm not damaging anything that's going to take longer to get fixed later on."
Justin Rose, Graeme McDowell, Ian Poulter and Jamie Donaldson are all in contention of finishing top ahead of the final four rounds.