Philadelphia 76ers defeat Boston Celtics, 98-97

Celtics roll to a stop Big lead - and 11-game winning streak - given away in second half By Julian Benbow, Globe Staff | December 19, 2009 Whatever the problems were, overconfidence had never been one of them.

Slow starts had plagued the Celtics. So had poor rebounding. So had stretches in games that were more hollow than others. But never inflated ego.

Last night’s 98-97 loss to Philadelphia was different.

Boston had won 11 straight, the longest stretch ...