
Masters champion Rory McIlroy faces an uphill battle to claim back-to-back major titles after an error-strewn opening round in the 107th US PGA Championship.
McIlroy struggled to a three-over-par 74 to trail Jhonattan Vegas by a daunting 10 shots, Vegas finishing his round shortly before 8pm with five birdies in the last six holes to become the first Venezuelan player to lead a major.