AC Milan boss Max Allegri says they cannot afford to lose Antonio Cassano.

Cassano is unsettled at the Rossoneri.

Ibrahimovic misses the Trofeo Berlusconi with a sprained ankle, so Antonio Cassano will start against Juventus," said Allegri.

"At the moment he is our only available striker, is doing well and preparing to have a great season. He knows competition at Milan is fierce and he must always be ready to prove himself."

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