Martin Murray is confident he can upset the odds and ruin Sergio Martinez's homecoming party in Buenos Aires on Saturday night.
The Argentinian veteran will be defending his WBC middleweight title in front of an expected 40,000 crowd at the Estadio Jose Amalfitani - his first fight on home soil in over 11 years.
The 38-year-old has lost only one of his last 28 bouts, a highly-controversial points defeat to Paul Williams in 2009, and he has since seen off British challenges from Darren Barker and Matthew Macklin.
But Murray, an undefeated former British and Commonwealth title-holder, insist he will not be intimidated by the partisan crowd as he chases a huge upset.
"I've not come over here to lose or to make numbers up," said the 30-year-old. "I've trained hard and I truly believe I can win.
"Sergio's a great fighter who I've looked up to over the past couple of years but I truly think it's my time.
"Whatever Sergio brings on Saturday I'll be ready for and I'm just looking forward to being in a great fight."
Murray can draw on the memory of his impressive performance as earned a draw with WBA champion Felix Sturm in Germany last year.
"The Felix Sturm fight was a great learning experience for me," Murray added. "Loads of things I learnt there I'm going to be bringing into this fight with me.
"I know Saturday is going to have to be the best performance from me but it's a performance I'm well capable of producing.
"The fact that it's against such a great fighter in his homeland has got me up for it. I have to raise my game and will raise my game on Saturday.
"I'm looking forward to putting all my hard training to good use and coming out victorious."