The AP reports: Second-stringer Leon Powe scored a career-high 27 points, adding 11 rebounds for his sixth career double-double, while Pierce, Kevin Garnett, Ray Allen and the rest of the Boston starters rested up for the playoffs. With their NBA-best 66 wins, the Celtics had already clinched the top seed in the Eastern Conference and a matchup against the Atlanta Hawks in the first round… Tony Allen scored 18 for Boston, which won its fourth straight game and the 11th of its last 12. Richard Jefferson scored 24 points, and Nenad Krstic scored 13 with a season-high 12 rebounds. The Nets ended up 34-48, missing the playoffs for first time since 2001.