Goals from Kevin-Prince Boateng and Sulley Muntari secured AC Milan a deserved 2-0 win in the first leg of their Champions League last-16 tie against Barcelona to leave the Liga giants with a mountain to climb. GettyImagesKevin Prince Boateng put AC Milan in front via a smart finish on the turn • Delighted Allegri hails Milan Boateng broke the deadlock on 56 minutes at San Siro with a smart finish on the turn, as Barca appealed in vain for a handball in the build-up. And Milan claimed a second with nine minutes left on the clock when Stephan El Shaarawy helped a ball onto Muntari, who fired past goalkeeper Victor Valdes. The home side continued to keep Barca at bay to clinch what could prove to