Phil Mickelson, who was recently diagnosed with locked facet joints in his lower back, said on Wednesday he will defend his title at this week's Phoenix Open.
The five-times major champion had been in doubt with a back injury that prompted him to withdraw from last week's PGA Tour event at Torrey Pines in Southern California after two rounds.
"I had a good practice session, though I didn't go full speed for much of it. I feel fine. I expect to play and play well," Mickelson said in a statement ahead of the Jan 30-February 2 Phoenix Open.
Mickelson, who was diagnosed with and treated for locked facet joints in his lower back, says he also plays to play next week's Pebble Beach National Pro-Am.
The 43-year-old Californian won last year's Phoenix Open at the TPC Scottsdale with a wire-to-wire victory that included an opening round 60.
(Reporting By Andrew Both in Cary, North Carolina; Editing by Frank Pingue)