Wenger stated after the match that recent results - Chelsea beating City 1-0 in the FA Cup semi-final and 2-1 in the Premier League - left City 'insecure' ahead of the European showpiece in Portugal.
He said: "Guardiola has just been voted manager of the year in England, because he won the (Premier League) championship and dominated, but a final is only one game and that's where you have to turn up and play at your best.
"We never know exactly what traces that defeats leave in our mind, but it shows tonight that Chelsea were convinced they could beat them."
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