Zhong Heng made a name for himself in the game against the United States at the Rio Olympics, then was drafted by the Oklahoma City Thunder. When Kevin Durant left for the Warriors in the 2016-17 season, Westbrook was heartbroken, and the Thunder indirectly lost their chance to win the championship. But Zhong Heng's arrival turned the Thunder into one of the NBA's most competitive teams...
(This will also make up for the regrets involving Melo and George. The protagonist keeps getting stronger and becomes dominant, but won't get too overpowered.)