Danny Willett has been forced to withdraw from the Players Championship after suffering from a recurrence of a back injury. “But swinging it like I’m swinging it, that’s when it kind of fires the back up”, Willett said.

Visibly struggling, Willett withdrew and took to Twitter on Friday night to explain to his 117,000 followers why he did so, before adding that after some disappointing results, his “body and mind need a rest”.

Willett is scheduled to play at the BMW PGA Championship in two weeks time and he admits further assessment regarding his fitness will be made in the next seven days or so to determine whether he can feature.

He began his second round at the Players with a bogey on the 10th but got that stroke back on the next hole and recorded four successive pars before a dropped shot at 16 was followed by a triple-bogey six on the infamous 17th.

It has been a continuing hard time for the 29-year old who saw his Augusta National winning caddy, Jonathan Smart give him the sack after a blazing on-course disagreement during the first round of the RBC Heritage Classic at Hilton Head, and a week after his Masters defence.

“I hit a couple of tee shots practising on Monday and just didn’t feel right and I’ve been getting treatment on it”, McIlroy told Sky Sports.

“It feels more like a muscle strain so I’m going to get an MRI scan on Monday after the tournament and I might have to rest for a week or two”. He would bounce back with a par at the 18th before calling it quits at the turn.

The former world number one is suing the PGA Tour for “reckless administration and implementation” of its anti-doping program after he was banned for using deer antler spray in 2013.