Thailand's Thongchai Jaidee continued his consistent form to lead the Wales Open by one stroke heading into Sunday's final round.
Jaidee signed off on a four-under 67 on Saturday, to back up his round of 68 on Friday, to reach seven-under overall, one clear of Dutchman Joost Luiten who fired a blistering seven-under 64.
The four-time European Tour winner, 42, said he had become accustomed to the different climate in Europe compared to his homeland in Asia, and added he was a good chance of claiming his first victory on European soil.
"I've won a lot of times in Asia and I've played well a lot of times in Asia," Jaidee said.
"In Europe, it's very important for me to do well because the weather is going to be very difficult for me. I've learned a lot of things - how to play with these conditions.
"I think this time it's a very good chance. You never know how it's going to be tomorrow, but I'll try to give it my best and look forward.
"If I keep my game plan like this, I have a good chance. I'll play my own game - the best thing to do is to hit fairways, hit the greens and putt well. That's my key tomorrow."
Brett Rumford is the best of the Australian contingent, eight shots off the pace at one over, with Matthew Zions (+2), Scott Hend (+3) and Marcus Fraser (+5) also struggling.
Luiten is tied for second with overnight leader Ross Fisher, who finished the day with an even-par 71 after missing an eagle putt at the 18th hole that would have given him a share of the lead with Jaidee.
Dutchman Tim Sluiter is fourth at Celtic Manor, after shooting a three-under 68 to sit two shots off the pace.
Germany's Marcel Siem and Spain's Carlos Del Moral both used moving day to their advantage, with respective rounds of five-under 66 to be four-under overall and three shots from Jaidee.
South Africa's George Coetzee is tied for seventh with English pair Mark Foster and Richard McEvoy on three-under.
Rounding out the top 10 is a group of five on two-under, including David Lynn, Thomas Bjorn, Gregory Bourdy, Richard Sterne and Damien McGrane.