Rory McIlroy is suffering from the effects of a virus as he seeks to top the European Tour’s money list.
McIlroy triumphed at the Hong Kong Open on Sunday to keep alive his hopes of winning the Tour’s Race to Dubai.
He now needs to win this week’s season-ending Dubai World Championship and hope Race leader Luke Donald finishes outside the top nine.
“I visited the doctor yesterday,” McIlroy revealed. “I won’t get the results back until later in the week.”