Ian McCulloch will hope to get the better of Ronnie O'Sullivan at the Welsh Open on Wednesday.
The Preston potter yesterday produced a gutsy comeback to beat ex-world amateur champion Mark Allen in the second round of the [pounds sterling]225,000 event at the Newport Centre.
McCulloch looked to be heading for an early exit as he trailed Allen 4-2.
But match breaks of 72, 47 and 74 ultimately proved crucial as the left-hander navigated his passage through to last 32 stage.
However, the provisional world No.36 was far from happy with his performance ahead of his meeting with the Rocket.
He said: "I played shocking. I feel really sorry for Mark because I didn't deserve to win the way I played," he said.
"Thankfully I showed a lot of character to win that last frame, but I didn't play well.
"The table was playing lovely, but I just had to persevere with my game and make sure I won.
"It wasn't pretty, but I won. I want to win a few matches here this week because it's good practice for the World Championship in a couple of months."
And the two-time ranking event runner-up was understandably relishing his best-of-nine frame clash with O'Sullivan, with the winner guaranteed [pounds sterling]4,275 in prize money if they progress.
McCulloch has beaten O'Sullivan in the past, but he makes no bones that he will have to play well to surprise the two-time world champion.
"For some reason I always play well against Ronnie, I don't know why" he added.
"He's pulled my pants down a few times, but you know you've got to play well to beat him. I'm going to have play a lot better than I did today. I played awfully out there."