Douglas Maicon admits the Inter Milan locker room are at a loss to explain their dismal form.

The Nerazzurri are in crisis and lost their last two outings against Lazio and Werder Bremen.

"We don't know what the problem is, but the injuries are not the only thing to blame," the right-back told Sky Sport Italia.

"We hope to have some players back soon and personally I am working towards the semi-final, but it's too easy to say our negative streak is entirely down to injuries."

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