One hole from rewriting 46 years of Masters history, Jason Day will continue to swear on the inside and wait for the putts to drop after giving himself a fighting Masters chance.
The Australian was on track to become the first man to go bogey-free through the tournament's first 36 holes since Ed Sneed in 1979, until his first blemish on the 18th green on Friday.
The PGA Championship winner 10 years ago settled for his second two-under-par round of 70 to be four-under-par and four shots back from leader Justin Rose entering the weekend.