By Mark Lamport-Stokes OAKMONT, Pennsylvania (Reuters) - The last time Bubba Watson played a U.S. Open at Oakmont Country Club, he finished at nine-over par to earn a share of fifth place so he always knew he was in for a tough time in this week's edition. "I just kept fighting," twice Masters champion Watson told reporters after mixing five birdies with three bogeys to get to two under before play was suspended for the day with only nine players completing the opening round. "You don't really think about the mistakes or the bogeys because everybody's going to make bogeys out here.
