Vlaar believes it will be a very different game this time around in the hastily rearranged fixture because of Chelsea's involvement at the UEFA Super Cup.
He said: "If you can win at the Emirates, of course it is a great start.
"We want to do it again on Wednesday now.
"We all know (remember) what happened last year, so we want to put that to rest."
He added: "We learnt a lot and we still have to learn a lot, but mentally we became a stronger team.
"We need everybody, all 25 players because it is a long season.
"The spirit is there in the group and that is the most important thing.
"To come back from an early goal was very good, and it was more than a win for us.
"You know when you play in eight days against Arsenal, Chelsea and Liverpool, that it could be a little easier, but it is the start of the season and nobody really knows a lot about each other, and what will happen from now."
For the big stories and the banter follow us on Twitter: @tribalfootball