CLEVELAND — LeBron James made an emotional return to Cleveland then battled through what was likely his worst game ever as a Cavaliers opponent. Donovan Mitchell scored 25 points, Jaylon Tyson had 20 and the Cleveland Cavaliers used a big third quarter to beat the Lakers 129-99 and spoil James’ return to Northeast Ohio. It also was James’ worst loss in Cleveland as a visiting player. It was the 12th time this season that the Cavaliers scored at least 40 points in a period. The only highlight for James in the second half was seeing his son, Bronny James, play the final eight minutes.