New look Enzo Maccarinelli has vowed to put his ripped physique to good use next Saturday night against Jonathan Banks.

The big-punching Welshman challenges for his old WBO World Cruiserweight crown against the undefeated American at the ExCel London.

And he has embarked on a strength and conditioning programme ahead of the big fight which has seen his body mass index drop dramatically - and his muscle density increase two-fold.

Big Macc unveiled his new shape during a power-packed media work out in Newbridge, Wales, on Thursday. And the big-puncher insists that it will make him even more explosive than usual against Banks.

"I've been training twice as hard since the David Haye fight," said Maccarinelli. "It made me realise how much I love this sport, and the Monday after the fight I was back in the gym,"

"I've been doing all my usual runs and fitness programmes with the boys from the gym, but have looked to improve my strength as well,"

"I've been chopping logs and dragging tyres around to make me stronger, and I've already seen the effects in sparring.

"I don't think I've ever hit this hard, and I've had to hold back a bit there's so much in my punches,"

"But when I get in the ring against Banks I'll be giving it 100 per cent right from the word go and showing everyone what I can do. Nothing less than a spectacular KO will do for me next weekend."