Darren Clarke continues to be troubled by a groin injury as he prepares to play in The Masters at Augusta.
"Sore," was how the Open champion described himself after an early nine holes of practice.
It led him to decide not to play the traditional par-three competition which precedes the start of the tournament.
"I don't think another nine holes is going to do it any good," said Clarke, who first struggled with the problem at the Houston Open last week.
The Open champion limped off the course at the Houston Open on Friday, having strained a groin muscle during his second round of 71.
The 43-year-old missed the halfway cut.
Clarke felt the injury while completing his rain-delayed first round on Friday morning but played on through the pain barrier to complete his second round.
Clarke earned a five-year Augusta National exemption in winning last year's Open championship and he will be competing in the event for the first time since 2007, when he missed the cut.