Danny Lee fired an even-par 69 during the second round of the AT&T Byron Nelson tournament on the PGA Tour in Texas as he slid down the leaderboard.
After opening with a three-under 67 yesterday, which included an ace at the par-three 17th, Lee was sitting inside the top 10.
But the 24-year-old wasn't able to pick up any strokes today as he finished the second round in a share of 39th.
Overnight rain forced a three-hour delay today, while the par-four 14th hole was also shortened to a 104-yard par three due to the downpour. A collection of players were still on the course when the second round was suspended due to darkness.
Americans Jimmy Walker and Jon Curran sit atop the leaderboard at nine-under, alongside Australian Steven Bowditch.