Round 1 at the HP Byron Nelson Championship

1 of 6 Mike Ehrmann/SI
Groups in the morning tee times were able to get in several holes before rain interrupted play until the afternoon.
2 of 6 Mike Ehrmann/SI
Severe weather delayed the action for more than three hours.
3 of 6 Mike Ehrmann/SI
bogeyed his final hole but still finished with a 4-under 66 to take the early lead.
4 of 6 Mike Ehrmann/SI
was on top of the leaderboard at the start of the weather delay. He bogeyed his final two holes to finish at 2 under.
5 of 6 Darren Carroll/Getty Images
heads into the week with four top-10 finishes on the season.
6 of 6 Tony Gutierrez/AP
is currently No. 17 in the world and the highest-ranked player in the field this week.