Oakmont win might be greatest accomplishment, says McIlroy

By Mark Lamport-Stokes OAKMONT, Pennsylvania (Reuters) - Rory McIlroy has already won four major titles but says that a victory at this week's U.S. Open being played at treacherous Oakmont Country Club could rank as his greatest ever accomplishment. All four of McIlroy's previous wins in golf's blue riband events have been achieved on soft layouts where the scoring has been low, very different from Oakmont where the last U.S. Open champion here, Angel Cabrera in 2007, finished at five-over par.