Inter Milan will host Milan at the San Siro tonight.
Allegri said: "Mario Balotelli has done well both as a lone centre-forward and with someone next to him. Alessandro Matri can be more of a lead striker, freeing up spaces and allowing Mario to move between the lines.
"I think Balotelli is relaxed about the derby, as he is playing well and working for the team. He knows it is an important match and people expect a lot from him, so I am sure it'll be a fine performance."
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