EAST LANSING, Mich.—Kenneth Walker earned the right to stump for Heisman Trophy votes and humbly refused, shaking off questions about the coveted award as if they were linebackers trying to tackle him. Walker ran for 197 yards and five touchdowns, helping No. 8 Michigan State top No. 6 Michigan 37–33 for a thrilling comeback win on Saturday. “I don’t feel like it was a Heisman moment,” said Walker, who started the day leading the nation in rushing and finished it with 1,194 yards rushing and 15 touchdowns. “But it was just a great team win.” The Wake Forest transfer had a lot to do with it. The Spartans (8–0, 5–0 Big Ten) trailed by nine at halftime and 30–14 with 6:47 left in the third quarter before rallying as Walker boosted his chances of being selected college football’s most outstanding player. Walker’s fifth touchdown—a 23-yard run—lifted the Spartans to a …