Oct 30, 2012 2 min read

LeBron James scored 26 points and grabbed 10 rebounds while missing much of the second half with leg cramps, Dwyane Wade scored 29 points and the NBA champion Miami Heat beat the Boston Celtics 120-107 Tuesday night in the season opener for both teams.Ray Allen, in his first game with Miami since leaving Boston over the summer, added 19 points for the Heat, as did Chris Bosh. Miami handed out its championship rings and raised the banner commemorating last season in a pregame ceremony replete with an indoor fireworks show.n Kyrie Irving scored 29 points, Anderson Varejao had a career-high 23 rebounds and the Cleveland Cavaliers opened the season with a 94-84 victory over the short-handed Washington Wizards.Rookie Dion Waiters added 17 points for the Cavs, who led by 16 in the third quarter but needed big plays from Irving and Varejao in the final minutes to hold off the Wizards, who scored the first 14 points of the fourth. Varejao had a career-high nine assists, two setting up dunks by Tristan Thompson in the last two minutes.Jordan Crawford scored 11 points to lead the Wizards, who were without star point guard John Wall, power forward Nene and forward Kevin Seraphin. Wall, the former No. 1 overall pick, is expected to be out until late November with a knee injury.