CLEVELAND — Kyrie Irving was tired of being teammates with LeBron James. Now he has to figure out how to beat him. Irving, Cleveland’s All-Star guard who asked owner Dan Gilbert to trade him earlier this summer, was dealt Tuesday night to the Boston Celtics for fellow All-Star Isaiah Thomas, forward Jae Crowder, center Ante Zizic and a 2018 first-round draft pick that the Celtics had previously obtained from the Brooklyn Nets.