LA QUINTA, Calif. – Max Homa has been tearing up the Stadium Course at The American Express for two days. If he can do it one more time Sunday, the Southern California native could be raising his second career PGA Tour trophy.Homa made nine birdies and shrugged off a double bogey on the way to a 7-under 65 in the third round Saturday, joining Tony Finau and Si Woo Kim atop the leaderboard at 15-under 201.Richy Werenski also shot a 65 and moved within a shot of the lead on the Stadium Course at PGA West near Palm Springs.Scotland's Russell Knox shot the day's low round with a 64 — one stroke off the course record — to join Brian Harman and Emiliano Grillo at 13 under.Finau and Kim both shot 67.