Tsubasa's Resurrection - S2-E8
Character mistake: Roberto says that Misugi already "peaked as a player" as opposed to Tsubasa who can improve. Since he does not know of Misugi's heart condition, the notion that a football player reached already his full potential when he is barely 11 years old is nonsense.
Character mistake: The characters keep referring to this match as Jun Misugi's last, hoping he'll win it, but Meiwa is an opponent just as fierce as Nankatsu, so even if Misugi beat Tsubasa, he would need to play still one more match. It's Misugi's last only if he loses (as in fact happens, but they can't know that).
The Brave Fighters from the North - S2-E2
Character mistake: According to the commentator, Hyuga and Matsuyama are "the only ones" who can catch Sawada's cross, but in the penalty area there are other players with much better placement and right where it would land. (00:19:20)
Character mistake: In the Italian dub, Hyuga mentions the lesson he learned from "Julian Ross" (Jun Misugi). He never played against him or his team, and was even in a coma during their match. He meant "Philip Callahan" (Hikaru Matsuyama). (00:13:35)
Tsubasa's Resurrection - S2-E8
Character mistake: In the Italian dub, Wakabayashi tells the keeper that he's replacing him, as in a substitution, while he simply asks him to let him have the ball for a moment.
I Can't Play - S2-E7
Character mistake: Tsubasa loses the ball botching the control with his chest, and the announcer says that Nankatsu is in danger, caught by surprise and need to pull back. As he says that, the images show 5 defenders perfectly placed in the penalty area and the team not off balance at all. (00:14:00)