Kyrie Irving and Al Horford have been the primary forces behind so much of what the Boston Celtics are doing well during their eight-game winning streak. On Sunday, it was key contributions off the bench from Marcus Smartand Terry Rozier. The reserve duo brought energy and grit during the Celtics' 104-88 win over Orlando on Sunday night. read more http://www.espn.com/nba/recap?gameId=400974889