Rory McIlroy has withdrawn from the Abu Dhabi Championship this week because of a rib injury. The European Tour released a statement on Monday saying the second-ranked McIlroy underwent tests after he was injured during the SA Open and they revealed a stress fracture. McIlroy said it was ''bitterly disappointing'' and ''really quite annoying'' to miss the tournament, which has the best field of the season on the European Tour. More...