9. Dida

Dida made a few mistakes, yes, while he will also be remembered for his play-acting antics in a Champions League tie against Celtic in 2007. But don't forget: there's a reason why he made over 300 appearances for AC Milan and won 91 caps for Brazil.

The South American, who left Milan after 10 successful years in 2010, was a very assured and capable goalkeeper.

You don't win two Champions League titles as a first-choice goalkeeper if you're anything less than top class.

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