DUBAI (Reuters) - World number one Rory McIlroy shrugged off a touch of desert sunstroke to join second-ranked Luke Donald and little-known Briton Marc Warren in a tie for the lead in the DP World Tour Championship second round on Friday. Officials brought several tees forward at the European Tour's season-ending event and it led to a rush of low-scoring even though the winds were fresher than they were 24 hours earlier. McIlroy carded a solitary bogey, at the short fourth, as he powered his way to a five-under 67 for an 11-under total of 133. ... More...