Scott Stallings leads the Humana Challenge in California by five strokes after the third round of action.
The 27-year-old American shot a nine-under 63 to reach 22-under 194 after three days, eagled the par-five 13th and had five birdies in his third round.
"I stayed aggressive," The AP quotes Stallings as saying. "Playing with John [Rollins] was a huge help.
"He's a good guy and he was an easy guy to club off of. We made a lot of birdies the last couple days, and so we kind of fed off each other, and that's definitely what you need to try to do in this format."