The World No. 8 shares 9th place and is three behind joint leaders, Hideki Matsuyama, PGA Tour rookie Abraham Ancer and recently turned professional Joaquin Niemann.
Day birdied four of his first six holes before things slowed down and is in position to improve on his disappointing record at Muirfield Village where he is a member but has never finished inside the top 10.
He explained after his round just what the issue was with his withdrawal yesterday. “Well it was just like a normal fever. Probably more of a man-cold, to be honest. But I feel like I'm dying every time.
“I'm sick, so my wife just looks at me and laughs at me. So I went from 206 to 196. And that change, with the heat today, I came out and I was kind of a little bit shaky because you're just not used to that quick weight change and you're out here trying to concentrate and get things going.
“So that was more of the toughest part of my round today, was just trying to get past that and trying to mentally just keep pushing forward.”
Of the other Australians in the field, Adam Scott and Cameron Davis were best, Scott finishing his round at even par although after birdies at his opening two holes he would have been hoping for something significantly better.
Davis is playing the event courtesy of an invite and last week’s Web.Com Tour event winner started his round poorly with two bogeys but eventually finished at even par which leaves him in a share of 47th place.
Rod Pampling and John Senden are at 1 over, Marc Leishman 2 over and Cameron Smith 3 over.
Tiger Woods looked in all sorts of trouble at 4 over through seven holes but produced a strong back nine to finish at even par.
SWING LIKE JUSTIN ROSE
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