Croatia defender Domagoj Vida says his team has a heart "as big as Russia itself" and they had still enough strength to win the World Cup, despite having played three extra-time matches.
Croatia beat England 2-1 on Thursday morning, with Mario Mandzukic netting the winner in the 109th minute after regulation time ended 1-1 in Moscow.
Croatia needed penalty shootouts to prevail over Denmark and hosts Russia in the previous two rounds of the knockout stage.
"The game was really hard, we have played three 120-minute matches, but we have a very good team and we can win the World Cup. We have a big heart, one more game to go and we want to win. It's going to be difficult in the final but we are not tired, we will do everything we can. We have a heart as big as Russia itself," Vida told journalists.
Croatia, who claimed the third place at the 1998 FIFA World Cup, will take the winners of that tournament, France, in the final, which will be played at Moscow's Luzhniki Stadium on Monday morning.