Asmir Begovic insists that he can challenge Thibaut Courtois for the No 1 spot at Chelsea and that he has no regrets about leaving first-team football at Stoke.

Begovic has joined Chelsea despite the fact the Belgian No 1 managed to oust Petr Cech from the team, knowing he is only likely to play in less important games.

'Obviously everyone has their opinion but for me it was more of a challenge to try something different,' said Begovic, who endured a nightmare pre-season debut for Chelsea, letting in four goals in 45 minutes against the New York Red Bulls whilst on the US tour.

Asmir Begovic dives to make a save during a Chelsea training session in Montreal, Canada, last week

Belgium international Thibaut Courtois, pictured saving a penalty against PSG, is Chelsea's current No 1

'I think I was at that stage where I want to test myself against the best and that's ultimately what I've come here to do. Even after the first week you can see the quality here and how they can improve you with the levels and demands here.'

'It was tough for the fact that I had a lot of ties and good relationships with Stoke City after five-and-a-half years and it was difficult to leave it behind.

'I want to test myself against Thibaut, he's one of the best goalkeepers in the world but I believe in myself. Hopefully every time I can show everybody what I'm all about and ultimately help this team. We all have to play our part and at a club like this I think you get to do so.

'There have been no guarantees. The challenge that's here, the manager and players was what attracted to me and that was a big part of my decision. I'll back myself, absolutely. I'll be keeping my head down and working hard to see how I can help this team in the future.'

Begovic (right) insists he can challenge Courtois for the No 1 spot after leaving Stoke in an £8million deal

Begovic endured a nightmare debut as he conceded four goals in 45 minutes against New York Red Bulls



