Birmingham boss Alex McLeish has conceded Arsenal are favourites for the Carling Cup.
Blues booked their place in the semi-finals with a 2-1 win over arch-rivals on Aston Villa on Wednesday.
McLeish's men now face West Ham in the last four, with bookies' favourites taking on Championship side Ipswich in the other semi-final.
Despite Arsenal being overwhelming favourites to go all the way, McLeish can see no reason why Birmingham cannot lift the first piece of silverware on offer this season.
"I am sure Arsenal are favourites but every team has got to believe," said McLeish.
"You saw the Ipswich result against West Brom, and it shows that can happen.
Belief"We turned the belief into reality by beating Villa.
"Can we go all the way? Why not? We are not favourites. Arsenal should on paper win it, but we know what can happen in cup football."
Birmingham defender Liam Ridgewell has warned his side not to under-estimate Premier League strugglers West Ham in the semi-final after they overcame holders Manchester United in the quarter-finals.
"I won one derby for Villa against the Blues. That was special but this is really special and to get into the semi-finals is an added bonus," admitted Ridgewell.
"West Ham are no slouches. They've just beaten Manchester United 4-0 at home.
"We've got every chance of going all the way. We've got the chance to get West Ham back at St Andrew's and hopefully we can keep it quite tight in the first leg.
"Hopefully we can avoid the 4-0 drubbing they did to United and bring them back to our place with us in good shape."