Mario Mandzukic and Cristiano Ronaldo scored either side of half-time while Gonzalo Higuain was sent off in AC Milan’s loss to Juventus. Gonzalo Higuain missed a penalty and was sent off in a nightmare meeting with Juventus as his woes cost AC Milan dear in a 2-0 loss at San Siro on Sunday. Having overcome a back problem to start, Higuain – moved out on loan following Cristiano Ronaldo’s arrival in Turin – might have wished he skipped the visit of his parent club after Wojciech Szczesny denied him from the spot in the 41st minute. The champions had already…