MILAN — Defending champion AC Milan fell to a surprise second loss of the season in Serie A with a 2-1 defeat at Torino on Sunday. Koffi Djidji and Aleksei Miranchuk netted in two first-half minutes for the hosts before Junior Messias pulled one back for Milan in the 67th following a bad mistake by Torino goalkeeper Vanja Milinković-Savić. “We …