Avram Grant has insisted that he 'knows what he is doing' and hit back at the Chelsea fans who have thrown abuse at him all season, despite taking the club to the Champions League Final and to a Premiership final day finish.

Chelsea fans regularly hit out at the Israeli with chants of "you don't know what you're doing!" after tactical mishaps.

However, the Israeli is still remaining confident that he is the man for the job.

"First of all I was happy with how we started those games but in all of them something happened and we needed to make a change - I think we did it well," Grant told the Daily Mail

"Against Arsenal we brought on Nicolas Anelka and Juliano Belletti and changed the system. We scored two goals to win the game and could have scored more.

"Then at Liverpool in the first leg of the Champions League semi-final, we brought on Salomon Kalou and Anelka and got back into the game. It was Kalou who crossed for the own goal while Anelka pressed John Arne Riise.

"With United, we brought on Anelka, [Andriy] Shevchenko and then [Claude] Makelele at the right time after they scored from our mistake. We finished the game with three strikers and scored a late goal to win it.

"And it was the same sort of game again for the second leg with Liverpool. We were much stronger but then they scored and we had to make changes.

"Everybody thought they would be fresher because we had just had a big game against United but we brought on Florent Malouda and Anelka to change the system and we deserved the win.

"In big games, changing the players or the system at the right time is one of the best ways to win the game when you know your opponents so well."