LeBron James powered the Cleveland Cavaliers to a 93-89 victory over the Golden State Warriors on Sunday in an electrifying Game Seven to complete an improbable comeback unlike any seen before and capture their first NBA championship. With the win over the top-seeded Warriors, who celebrated a championship on Cleveland's home court last year, the Cavaliers became the first team to rally from a 3-1 series deficit in the best-of-seven NBA Finals and win the title.