Water at No. 18 already making an impact

IRVING, Texas -- Apparently the lack of wind at the HP Byron Nelson Championship on Thursday doesn't mean players will avoid dunking golf balls into the pond on No. 18.

Tournament leader Jhonattan Vegas came to the 18th hole at 4-under on his front nine (he started at No. 10). But he hit his tee shot into the water and made bogey.

Louis Oosthuizen would have loved bogey. The 2011 British Open champion and the man who lost in a playoff to Bubba Watson at the Masters last month hit his tee shot into the water, dropped and promply splashed another one. He managed to drop and put his fifth shot to eight feet, but missed the putt. The triple-bogey dropped him to 5-over for the tournament.

Phil Mickelson flirted with the water on his tee shot in the opening round as his ball bounced on the bank and slid toward the pond. But the long grass held it and Mickelson made par. He's 1-under for the event.