World No. 1 and defending champion Rory McIlroy withdrew from the US PGA Honda Classic during his second round on Friday, saying he was struggling due to pain from a sore wisdom tooth.
McIlroy struggled through the back nine on Friday, his opening nine holes of the round, and hit his approach at the 18th into water. He then walked off the course and quickly departed the grounds with his coach and caddie.
"I sincerely apoloize to The Honda Classic and PGA Tour for my sudden withdrawal," McIlroy said. "I have been suffering with a sore wisdom tooth, which is due to come out in the near future."