PGA Tour commentator Brandel Chamblee has expressed concern for the chronically-injured Jason Day, whose hopes of contesting this week's elite Players Championship appear slim.
Former World No.1 Day walked off Orlando's Bay Hill course on Friday, midway through the second round of the Arnold Palmer Invitational.
Still feeling stiff in the back, Day was unable to practice but walked Florida's TPC Sawgrass course on Monday ahead of the Players, which starts Thursday.
On Tuesday, Day did not practice at TPC Sawgrass.
Former PGA Tour winner-turned Golf Channel analyst Chamblee questioned whether Day's ongoing back injuries could be resolved, or whether he'd have to manage a troubled spine for the rest of his career.
"I don't know if the calamity is irreversible, but it might be," Chamblee said on Tuesday at TPC Sawgrass.
"When I hear Jason Day talking about all the sacrifices he needed to make in the gym and practising, I never really heard about him paying proper attention to recovery."
Day's withdrawal from the Palmer event was the 10th of his PGA Tour career and is related to a chronic back injury he battled throughout 2019.
He withdrew from the same Palmer event last year before receiving four cortisone injections, which helped him earn a tie for eighth at the 2019 Players Championship a week after.
"When I hear Jason Day talking about all the sacrifices he needed to make in the gym and practising, I never really heard about him paying proper attention to recovery." – Brandel Chamblee
A month later, he received on-course medical attention in the first round at the 2019 Masters but eventually tied for fifth, two shots behind winner Tiger Woods.
In December, the injury forced Day to skip a trip home to Australia for the Australian Open in Sydney and the Presidents Cup in Melbourne.
Chamblee said Day's explosive swing was not conducive to longevity. Day has won 12 times on the PGA Tour, including a lone major at the 2015 US PGA Championship.
"If you have a short, quick golf swing then you are going to have a short, quick career," Chamblee said.
"Especially if you have a violent transition the way (Day) has had. He had a wonderful run in his 20s and a nice run through his early 30s.
"I can remember a point where he said he was trying to shorten his golf swing and I thought that is the exact opposite thing you needed to be doing."
Chamblee said Day could benefit from taking a leaf from the book of World No.1 Rory McIlroy, who prioritises recovery.
McIlroy wears a fitness wristband called a WHOOP, which analyses strain, recovery and sleep on an athlete's body. NFL legendary quarter-back Tom Brady is also a user.
"I think Jason Day could learn from Rory and (Roger) Federer and Brady," Chamblee said.
- Evin Priest, Australian Associated Press