Martin Murray has predicted that punch resistance and desire will be the deciding factors when he faces George Groves on Saturday night.
Groves is considered to be the marginal favourite for the all-British super-middleweight showdown at London's O2 Arena but despite Groves holding an advantage in size, Murray insists that his own qualities will help him to victory.
The 33-year-old is quoted by Sky Sports News as saying: "I don't think the fight's won on size.
"He is naturally the bigger man, but I think the fight's won on ability, how versatile you can be, how well you can take a shot and how much you want it.
"I think I'm better in all those areas, and that's the reason why I'll win on Saturday."
The winner of the bout will move closer to an opportunity to fight for the WBA title.