LOS ANGELES—Former heavyweight champion Mike Tyson has urged Tyson Fury not to hang up his gloves amid rumors that he might walk away from the sport following his electrifying win against Deontay Wilder earlier this month. Fury sent Wilder to the canvas with a violent knockout punch in the 11th round to end the slugfest in Las Vegas and remain the undefeated WBC and lineal heavyweight champion. In the leadup to the fight, the 33-year-old Briton suggested he could walk away from the sport happy, and others have said the “Gypsy King” has nothing left to prove after beating Wladimir Klitschko in 2015 and Wilder twice. Tyson, who Fury is named after, said he hopes that is not the case after what he called a “very exciting” bout. “Keep on winning brother, keep on winning,” Tyson said. “He’s the lineal champion. He’s the man who beat the man. He is …