HIS own son has already been tipped as a future champion, but coach John Costello admits he is equally excited about the path Jamie Cox's fledgling professional career is taking.

Birmingham-based Costello was in Cox's corner - albeit briefly - to watch the Swindon fighter dismantle his opponent in under two minutes on Saturday night, and he admits the performance was one of real potential.

Costello's son, Thomas, took two rounds to see off veteran David Kehoe at the Excel Arena in February, taking his professional record to four wins from four fights.

Cox made it five from five in the pro game at the Cardiff International Arena, leaving Costello to drool over the prospect of another future champion for trainer Richie Woodall.

He said: "These last six weeks I have seen a real change in Jamie. When a kid comes out of two-minute rounds it takes the body a long time to adjust.

"I have really seen a physical change take place in him. I just knew tonight he was going to be explosive, and he was.

"There are lots of bodies in that welterweight division, but Jamie will definitely be up there. I don't think we will have to wait too long for a belt."

Costello, who hopes to steer his son to a top title one day, believes Cox has already taken the first steps on the road to glory.

The Swindon boxer was perhaps too eager to impress in his early fights as a pro, but Costello insists he is maturing quickly.

"I thought tonight it was a very rounded performance," he said.

"Jamie had more precision on his shots, none were wasted. He showed he is becoming a professional, and a good professional at that.

"In his last three performances he went gung-ho because he can hit hard, and he knows he can hit hard.

"But he's learnt from that. He slowed it down nicely, and took 10 per cent off his movement, which was a good adjustment.

"The first uppercut he caught him with, Lenny (Woodhall) and myself knew straight away that Kehoe was gone.

"I don't think it would have mattered who he was facing tonight. If they got hit with that uppercut they would have stayed hit."

Cox later admitted he isn't bothered how long his fights last, so long as he is one with his arms raised aloft at the final bell.

He said: "I don't care if it's 12 rounds on points or a knockout inside 10 seconds, as long as I get the win that's all that matters.

"It was my 100th fight tonight and that was a good way to win it.

"We're moving onto six-rounders now and I can't wait for the challenge."