This week in golf: January 16-19

What: Humana Challenge in La Quinta, Calif.

Course: PGA West, Arnold Palmer Private Course (6,950 yards, par 72); PGA West, Jack Nicklaus Private Course (6,951 yards, par 72); La Quinta Country Club (7,060 yards, par 72)

Schedule (TV): Thursday-Sunday (Golf Channel)

Purse: $5.7 million (winner's share: $1.03 million)

Defending champion: Brian Gay

What: Mitsubishi Electric Championshi in Kaupulehu-Kona, Hawaii

Course: Hualalai Golf Course (7,107 yards, par 72)

Schedule (TV): Friday-Sunday (Golf Channel)

Defending champion: John Cook

PGA: Kapalua winner Zach Johnson is the top-ranked player in the Humana Challenge field at No. 6. No. 14 Brandt Snedeker, No. 20 Webb Simpson and No. 22 Keegan Bradley are the only others in the top 30 in the field. … Phil Mickelson is skipping the tournament to play at the Abu Dhabi Championship, a European Tour event that also includes Rory McIlroy, Henrik Stenson, Luke Donald and Sergio Garcia.

Champions Tour: This week's tournament opens the 50-and-over tour's 25-event schedule. ... The 42-player field features major champions from the past five years, other tournament winners the past two seasons and sponsor invitees.