Michael Campbell is still in touch of winning on the European Tour for the first time in almost eight years.
The 43-year-old has carded his third successive four under par 68 at the Doha Golf Club to get to a 12 under par total in a three-way share of second place at the Qatar Masters.
Cambo will begin the final round three shots back from Englishman Chris Wood who made the most of moving day with an eight under par 64.
The former US Open champion once again got off to a fast start as he made three birdies on the front nine to make the turn in three under par 33.
He added further birdies on the 10th and 13th as he kept pace with the birdie blitz from Wood before dropping a shot at the 15th.
The eight time winner on the European Tour has been on a steady comeback since the middle of the 2012 season -where he recorded a third place finish in Portugal and a tie for eighth in Hong Kong.
He is currently in a share of 59th place in the early stages of the Race to Dubai Standings and is looking for his first victory since the World Match Play at Wentworth in 2005.
It is a remarkable comeback from Campbell who during his career slump fell outside the Official World Golf Ranking's top 900 after injury problems and a loss of form.
He is playing with renewed belief after the two top 10 finishes in 2012.
"Six months ago, I was desperate," he told the European Tour.
"I think I made two cuts in about two years, 18 months or something, and now I have a chance of winning a couple times last year and maybe tomorrow.
"We are just going back to what is working and what worked before, and going back with my coach Jonathan Yarwood six months ago definitely helped.
"That's really one thing I've been working the last six months is just smile after each round of golf, whether it's a good one or a bad one, and it's working so far. It's really simple stuff."
Campbell is outclassing a field that includes a total of 80 European Tour winners but he has still got his eyes on improving further and winning for the ninth time in Europe.
"Once again, four under after ten holes and just couldn't hole a putt on the last eight holes," he added. "I holed a chip, but not a putt.
"It's been frustrating, but it's just one of those things where at this time last year, I was packing my bags and going home, so I can't complain about that. Being three shots behind with one round to go, it's definitely nice to be in this situation.
"It's just nice to be out here and having some fun at the same time and maybe have a chance of winning.
"I think when a title is definitely reachable, expectations are obviously quite high and I want to do well this weekend or tomorrow, and if I don't, no big deal, you've got next week.
"All I can do is just control my own game, control my own destiny and see what happens."