Chelsea win face last Champions League semi finalists, Ajax, on Wednesday and Ajax boss believe his team will win the blues.
The Dutch champions have made an impressive start to the campaign, unbeaten in their domestic league and are top of Champions League Group H as they prepare to face Chelsea .
Ten Hag has managed to move on even after selling Frenkie De Jong to Barcelona and Matthijs de Ligt who both played a major part in Ajax reaching last season’s semi final before they lost to Tottenham in heartbreaking fashion.
Ten Hag said: “I think, two things, first is that last season was last season. We have to forget that because we live in the future, we live for now and we have to perform and this team is a different team.
“We are building a new team and developing a new team. Now we have to step up and become better. Sometimes you fall down but you also have to step up again and be better, develop. That’s only possible when you play out of your philosophy. Attitude to be better every day.
“It’s a little bit different also in the tactics but that’s normal because you lose players and the players you get in are different types.
“Every player has its own identity, we are playing a little differently but I think we’re still a strong team and I believe it’s a strong team, I believe it can develop and be again very successful.”
Ajax are trying to build a new generation this season to blend into last year’s squad with ex-Manchester United defender Daley Blind, 29, one of the survivors.
Blind was asked what he made of Chelsea’s fortunes this season as compared to United as they have been struggling.
He added: “Of course I’m not happy to see Man United and how they’re performing, how they’re doing at the moment, I’m still a fan of United, it’s not nice to see.
“About Chelsea, they are doing well, their philosophy, like the manager said they want to play from the back, they play different attacking football with a lot of youngsters and that’s something nice to see.
“If you’re looking at that, it’s good. But if you’re taking about United then I’m not happy about that of course.”
Ajax are confident that the pitch in their stadium will be in good shape despite hosting the Amsterdam Music Festival at the weekend which lasts year attracted 40,000 fans.
Ten Hag added: “It looks very good and in my opinion it’s fine to play.”