The best side has gone through,they showed that last week and here at this stadium, said Conte.
Pirlo gave the ball away to Bastian Schweinsteiger as he tried to play his way out of defence.
Spain and Croatia have never met in a competitive game.
A 2-2 draw would put both sides into the quarter-finals even if third-placed Italy beat Ireland and a defeat would probably mean an early flight home.
Croatia held Italy to a 1-1 draw in their Euro 2012 Group C clash.
Croatia dealt a major blow to Irelands hopes of reaching the Euro quarter-finals beating them 3-1 in their Group C opener in Poznan,with Mario Mandzukic scoring a double
Mario Mandzukic scored two goals to help Croatia beat Ireland 3-1 at European Championship.