LeBron James said winning the 2016 championship with the Cleveland Cavaliers made him the greatest NBA player of all-time. During an episode of ESPN's "More Than An Athlete," James reflected on winning the 2016 NBA Championship with the Cleveland Cavaliers, in which they overcame a 3-1 deficit against the Golden State Warriors. "That's what I felt." Read more:Zion Williamson weighs in on the NBA 'Greatest of All Time' debate The championship was James' third and his third Finals MVP. <br />