Scotland’s Martin Laird shot a one-over-par 73 to slip to joint ninth after three rounds of the Farmers Insurance Open in San Diego.
Tied for fourth overnight, he is now on six under, three shots behind joint leaders Scott Brown of the USA and South Korea’s KJ Choi at Torrey Pines.
Americans Jimmy Walker and Gary Woodland share second on eight under.
Sweden’s Jonas Blixt, who carded a second successive 66, is in a group of four players one shot adrift.
Compatriot Freddie Jacobsen and Americans Michael Kim and Jon Huh are tied for fifth with Blixt.