(Reuters) - World number two Jason Day has pulled out of next week's World Golf Championships (WGC) event in Mexico City due to illness, the Australian announced on Sunday.
"I have a double ear infection and the flu, which precludes me from preparing for and playing in the tournament," he said in a statement.
Day last week was deposed as world number one by American Dustin Johnson.
The WGC-Mexico Championship starts on Thursday at the Club de Golf Chapultepec.
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(Reporting by Andrew Both in Cary, North Carolina; Editing by Steve Keating)