Allegri: AC Milan benefited from red card and offside goal
The 20-year-old fired home just after half time, but the 45-year-old tactician has conceded that there was an offside.
“The first goal from El Shaarawy was offside,” he told Sky Sport Italia. “It was easy to see. It was tough on Catania, because they played a really good game.
“In the first half we were a little timid and Catania took advantage from a dead ball situation, but apart from their goal we didn’t give them many chances.
“In the second half we improved vastly and the Barrientos’ red card certainly helped.
“It is an important win for us and it allows us to continue the good form we are on.”