Stekelenburg worked with Koeman at both Ajax and Southampton, and says that he loves playing the Premier League and that Koeman is one of the best coaches in the business.
“I’m very happy – things have moved very fast over the last couple days,” Stekelenburg told evertontv.
“He [Koeman] has come to Everton and he called me a few days after asking if I was willing to follow him. It wasn’t difficult to make that choice.
“He’s one of the best coaches – he’s straight talking, he’s fair and he has confidence in me which counts as well.
“I’ve been here [in England] for a couple of seasons and I love the Premier League. It’s fantastic that I can stay.”