The big-spending Russian Premier League team Anzhi Makhachkala have fired their head coach Gadzhi Gadzhiyev after a string of disappointing results.

A brief statement from the team on Thursday did not state the reason for the dismissal of Gadzhiyev, who took the helm in 2010.

Anzhi attracted worldwide attention in August when they signed the Cameroon striker Samuel Eto'o from Internazionale for £20m and made him the world's best paid player on £8.9m a season. Earlier this month the club were rumoured to have offered José Mourinho £1.83m a month to take over as manager.

But Anzhi's performance since Eto'o joined the team have been poor – despite the striker scoring twice in his three games thus far – with just one win from their last six matches. Anzhi are currently seventh in the Premier League.

The assistant coach Andrey Gordeyev and the captain Roberto Carlos will take over the coach duties on an interim basis, the club statement said.