They beat Cesena 3-2 at the San Siro, though their visitors fought back from 2-0 down to level the scores at 2-2 before Christian Chivu netted a winner.
Leonardo said: “Psychologically we weren’t prepared for their come-back. Our defence had had nothing to do until then and we were ragged. But I’m pleased with how they recovered in the second half and in the end we deserved the win.”