This week's events

European Tour Abu Dhabi HSBC Championship

Site: Abu Dhabi, United Arab Emirates.

Course: Abu Dhabi GC (Yardage: 7,583. Par: 72).

Purse: $2.7 million.

Television: Golf Channel (Wednesday, 10:30 pm to 3:30 am; Thursday 6-8 am; Friday-Sunday, 3:30-8 am).

Defending champion: Rickie Fowler.

Notes: Rory McIlroy withdrew because of a stress fracture in his back ... Abu Dhabi was the strongest field of the year among regular European Tour events last year ... Rickie Fowler won last year by one shot over Thomas Pieters, with Henrik Stenson and McIlroy tied for third. Fowler played the following week in the Phoenix Open and lost a two-shot lead with two to play. He failed to win for the rest of the year ... US Open champion Dustin Johnson makes his Abu Dhabi debut. Americans in recent years who have played include Tiger Woods and Phil Mickelson ... Branden Grace played both Hawaii events before heading to Abu Dhabi ... Chris DiMarco won the first Abu Dhabi HSBC Championship in 2006.

Next week: Commercial Bank Qatar Masters.

Online: www.europeantour.com

PGA Tour Careerbuilder Challenge

Site: La Quinta, California

Course: TPC Stadium Course at PGA West (Yardage: 7,113. Par: 72); Jack Nicklaus Tournament Course at PGA West (Yardage: 7,159. Par: 72); La Quinta CC (Yardage: 7,060. Par: 72).

Purse: $5.8 million (First prize: $1,044,000).

Television: Golf Channel (Thursday-Sunday, 3-7 pm).

Defending champion: Jason Dufner.

Notes: Phil Mickelson, who signed on as an ambassador for the tournament, has saved a spot in the field in case he can play. Mickelson had two hernia surgeries during the offseason and was not sure he could play this soon ... Hunter Mahan, who hasn't finished in the top 50 in nearly a year, is playing this tournament for the first time since 2007 ... John Cook received a sponsor's exemption. The 59-year-old is a two-time winner of the Bob Hope Classic. Also playing is 55-year-old Mark Brooks, who won the Hope in 1996 the year he captured his only major at the PGA Championship ... Harrison Frazar once shot 59 on the Nicklaus course during the fourth round of Q-school in 2008.

Online: www.pgatour.com

PGA Tour Champions Mitsubishi Electric Championship at Hualalai

Site: Kaupulehu-Kona, Hawaii.

Course: Hualalai GC (Yardage: 7,107. Par: 72).

Purse: $1.8 million (First prize: $300,000).

Television: Golf Channel (Thursday-Saturday, 7-10 pm).

Defending champion: Duffy Waldorf.

Last tournament: Paul Goydos won the Charles Schwab Championship to end the 2016 season.

Notes: The first tournament of the year on the Champions schedule runs Thursday-Saturday ... Bernhard Langer is in the field to begin his quest for a fourth consecutive Charles Schwab Cup ... Former PGA champion David Toms turned 50 at the start of the year and makes his PGA Tour Champions debut at Hualalai ... John Daly and Ben Crenshaw were among those given sponsor exemptions. They both won their second major in 1995, Crenshaw at Augusta National and Daly at St Andrews.

Online: www.pgatour.com/champions

Japan Golf Tour/Asian Tour SMBC Singapore Open

Site: Singapore

Course: Sentosa GC

Purse: $1 million.

Defending champion: Song Young-han

Notes: Adam Scott and Sergio Garcia make their first start this year ... Scott won the tournament in 2005, 2006 and 2010. Ernie Els is playing on a sponsor invitation ... The tournament returns to the Asian Tour schedule after a three-year absence. This is the first time the Japan Golf Tour is co-sanctioning the Singapore Open

Online: www.jgto.org and www.asiantour.com