Coach Carlo Ancelotti said Brazil "mentally collapsed" in their 3-2 friendly defeat to Japan on Tuesday and warned that they need to learn from their mistakes before the World Cup.

Japan claimed their first win over Brazil after roaring back in the second half to stun Carlo Ancelotti's side 3-2 in a friendly in Tokyo on Tuesday.

Momoko Tanikawa scored a stunning 96th-minute winner as Japan netted twice in injury time to come from behind and beat Brazil 2-1 in the Olympic women's football tournament on Sunday.