Danny Lee's steady slide down the leaderboard at the Farmers Insurance Open continued in the third round, leaving the Kiwi No.2 out of contention.
Fifteenth after the opening round at Torrey Pines, Lee dropped to 23rd at the midway point and is 39th with a day to play.
His one-over 73 on Saturday featured three bogeys and left him on three-under, eight shots behind Swedish leader Alex Noren.
Noren – who has nine European Tour wins and is ranked No.19 in the world – carded a three-under 69, giving him his first 54-hole lead on the PGA Tour of his career.
The Swede leads by one shot over American Ryan Palmer, who struggled after building a two-shot lead by nailing a 45-foot eagle putt on the par-5 15th.