Chelsea Boss Avram Grant claimed that the Blues should be strong mentally if they want to attain success in the Premier League on Sunday.

Even though they are lagging behind league toppers Manchester United only on goal difference, the Red Devils just need to secure a win against Wigan Athletic at the JJB Stadium to retain the title no matter what the outcome at Chelsea.

Grant believes that whichever team is able to play they normal game despite the pressure, will turn out victorious on Sunday.

Grant told Sky Sports News: "Nobody expected it and nobody believed that it would come to this stage, we believed it all the time.

"When you come to the last month or two months it is mental strength, but you also have to show physical qualities.

"When you come to the last game, mental strength is very important.

"We have a game against Bolton, which is not an easy game and we need to win, I think it will be a very tough game.

"Of course we will look at the result from Wigan. We hope that everything will be OK.

"Wigan haven't lost at home since January, they played fantastically against us before. They know that they are under the spotlight all over the world and everyone is watching so I am sure they will do their best."