WBO super middleweight champion Joe Calzaghe says he wants his 21st title defense to be against top targets Mikkel Kessler or Jermain Taylor. The 35-year-old Calzaghe made a milestone 20th title defense against Peter Manfredo last month and has ruled in the 168lb division since 1997. The unbeaten Welshman doesn't plan to retire any time soon. "I have proudly held the WBO title for nearly 10 years since my great win over Chris Eubank way back in 1997. I've made 20 defenses and I would love my 21st to be either against Kessler or Taylor," said Calzaghe. "Tiger Woods and Roger Federer have dominated their sports for the last few years but boxing is the hardest sport out there and to remain at the top for the last 10 years as a WBO world champion is an achievement I am very proud of. I'm in fantastic shape and I'm beating the younger lads in our gym when we are in training. I'm 35 but I feel like I'm 21 and I've still got a few good years ahead of me and I don't see why I can't carry on into my forties like Hopkins has done."