James scored 35 points and added eight rebounds, eight assists and three steals, and Kyrie Irving posted 24 points and seven assists to power the Cavaliers to a 135-102 blowout of the Boston Celtics in Game 5 to clinch the Eastern Conference title. The Cavaliers, who sat their starters for the entire fourth quarter, begin their third straight NBA Finals series against the Golden State Warriors next Thursday in Oakland.