By Daniel Chavkin The Wolverines coach and athletic director discussed the postgame incident between several Spartans and a single Michigan player. Michigan’s victory over Michigan State was marred by a fight in the tunnel after the game, when multiple Spartans were caught on video fighting one Wolverines player. The Michigan player, who appears to be defensive back Ja’Den McBurrows, was the lone Michigan player in the tunnel when Michigan State players were heading to their locker room. After the incident, Michigan coach Jim Harbaugh and athletic director Warde Manuel addressed the incident. …