Calzaghe says that he is still number one at 168lbs

WBA champion Kessler meets WBC king Markus Beyer in a unification bout in Copenhagen on Saturday and says he has "no doubt" that he is the world's best.

WBO & IBF champion Calzaghe meets Sakio Bika in Manchester on the same night.

"Kessler's the second-best super middle in the world, but I see myself beating him, like anyone else at the weight," said undefeated Welshman Calzaghe, 34.

I think Calzaghe has the potential to transcend the sport 'Sugar' Ray Leonard

"I fancy Kessler to beat Beyer convincingly, so we will wait to see if the two of us fight further down the line.

"Obviously I don't want to go to Denmark and fight him, the same as he doesn't want to come to Britain, but we'll have to wait and see."

Ring legend 'Sugar' Ray Leonard has joined the Calzaghe fan club, saying that the Newbridge man finally has the chance to break the US market.

"I think Calzaghe has the potential to transcend the sport and become bigger than life if he comes over here," said Leonard.

"American sports fans can gravitate towards him, his victory over Jeff Lacy last March pretty much rocked the boxing establishment.

"I didn't think Calzaghe could beat him, but it was an amazing, amazing performance."

I'm the best super middleweight in the world and I'm ready to fight anyone to prove that Mikkel Kessler

Calzaghe holds a proud record of 41-0 (31 KOs), and - having held the WBO belt since 1997 and made 18 defences - is the longest reigning current world champion in the sport.

Copenhagen's Kessler, 27, is also undefeated with a record of 37-0 (28 KOs) since turning professional in 1998.

'The Viking Warrior' stopped Manny Siaca for the WBA belt in 2004 and has since defended successfully against Anthony Mundine and Eric Lucas.

"In my opinion there is no doubt that I am the best super middleweight in the world and I'm ready to fight anyone to prove that," said the Copenhagen man.

"And to Calzaghe: Let's meet and find out! But right now the only thing on my mind is Beyer."

Bika's going to find out that I am in a different league to Beyer Joe Calzaghe on Sakio Bika

Calzaghe's next opponent Bika fought out a technical four-round draw with Beyer in his last outing, the bout stopped by a cut under the latter's right eye caused by an accidental headbutt.

"Bika was very unlucky with the draw, I think he might have gone on to win that fight," said Calzaghe.

"But he's going to find out that I am in a different league to Beyer, full stop.

"Bika's a good fighter, he's strong, he comes forward, he likes to try and land big punches - and that's good for me.

"I always fight better against authentic fighters and I don't think he's going to stand back, he's going to come to fight and you will see a great fight."

Bika, 27, was born in Cameroon but is now based in Australia.