Jhonattan Vegas and William McGirt, two PGA TOUR rookies, find themselves atop the leaderboard after the first round of the Justin Timberlake Shriners Hospitals for Children Open. Vegas, who won early this season at the Bob Hope Classic after finishing No. 7 on the 2010 Nationwide Tour money list, is one of six rookie winners on the PGA TOUR this season. McGirt, a 2010 q-school graduate, hit his stride late in the season as he escaped the FedExCup bubble to qualify for The Barclays and the Deutsche Bank Championship. Nathan Green, who held the lead for much of the afternoon, ended up one shot off the pace. Charlie Wi birdied two of his last three holes to get to 7 under and tie Green for third place. There are 11 golfers (including Nick Watney, Steve Flesch, Matt Jones and Tim Herron) tied at 6 under, two shots off the pace. Click below to see some of the best shots from Thursday's opening round at TPC Summerlin.