Dorin Goian netted the only goal of the game inside the first ten minutes.
“Going down early on was not helpful and we didn’t play well in the first half, especially the final third,” said Allegri.
“It was better after the break, although considering all our possession, we didn’t have enough shots on target.
“Although it was better to avoid it, a defeat can happen. Fortunately we are going into the break for international duty now and have time to get our ideas in order. In any case, we are still top of the table, then we’ll see what Inter and Napoli do tomorrow.”