Warren native Jason Kokrak withdrew from the second round of the Farmers Insurance Open with a back injury.
Kokrak shot a 2-over 74 in Thursday's first round. He was at 2-over for the day when he withdrew, having shot a 38 on the front nine.
"Everything is OK," Kokrak wrote in a text to The Vindicator. "Just strained something a bit."
Kokrak said he is planning to play in next week's Waste Management Phoenix Open.