The PGA TOUR heads to La Quinta, Calif. this week for the Humana Challenge.

Two-time champion Phil Mickelson, Webb Simpson, and reigning champion Mark Wilson are among those scheduled to compete this week at PGA West.

Russell Henley, who won last week's Sony Open in his first start as a TOUR member, and Jhonattan Vegas, who won the 2011 event as a rookie, are also in the field this week.

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