"Gerard Deulofeu made a big impact and allowed the performance to create a scoreline which suggests it was easier than it probably was," said Martinez.
"I think he was really disappointed with last week. From my point of view I told him I thought he was outstanding against Liverpool (a memorable 3-3 draw) but he had two good chances and he felt he should have taken them.
"During the week he was left with a negative feeling that he didn't deserve, that is why I felt it was right for him to start and flush that feeling away and he was desperate to do that.
"I thought his first goal was sensational, I thought it was the moment of the game.
"The way he works for the team, the way he understands his role in the team has been very impressive.
"I am really pleased with the overall performance, that he was able to play 90 minutes and create so many chances and scoring the first goal was a pivotal moment.
"He is one of the most talented footballers in Spanish football, he is quite a unique talent, and the moment he made his Barcelona debut against Real Madrid in the Bernabeu aged 16 is when he caught my attention.
"There was a long list trying to take Gerard on loan and the fact he wanted to come to Everton was a fantastic feeling, and you can see why we worked so hard to attract him to the club."
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