Justin Rose, winner of the 2013 US Open, is expecting to face “the toughest greens in golf”.
But the 35-year-old admits he is just glad to be playing after overcoming a back injury.
Rose said: “It’s been a race against the clock for me to be fit and ready to play here. Since the Players Championship I have been recovering from a flared-up disc.
“I have done everything humanly possible to be here from a recovery point of view, from a fitness point of view, from a practice point of view.
“It’s been a tight timetable but I’m confident I’ve done a lot of the hard work.
“I’m coming in fresh, which is the great news. That could be an advantage come the end of the week.”
‘I’d love to go to Rio’
World number two Jordan Spieth said on Monday he intended to play at the Rio Olympics this summer, despite concerns over the Zika virus.
Australians Marc Leishman and Adam Scott have already withdrawn because of Zika – an infection linked to brain deformities in newborn babies – but McIlroy expects to play.
Willett said he would “love to go”.
He added: “It’s still up in the air. There’s obviously a bit of a worry as you’ve seen from the guys that have pulled out.
“Hopefully the threat is a bit less and we can go there.”
Source: BBC NEWS