Celtics seek repeat, Lebron and son unite as NBA season opens

Defending champion Boston launches a quest for back-to-back titles, LeBron James teams with his 20-year-old son and familiar faces debut in new places when the NBA's 79th season begins on Tuesday.NBA all-time scoring leader James, who turns 40 in December, joined his eldest son Bronny in the Lakers lineup during a pre-season loss to Phoenix, the NBA's first father-son combination.