It has become common place for the Celtics this season, start the game with a big lead only to lose it down the stretch.That was the case in Friday's 109-102 loss to the Chicago Bulls. The Celtics led by as many as 16 points in the first half thanks to Jared Sullinger who finished with 22 points including four 3-pointers. Boston also led by 6 going into the fourth quarter but could not hold on.

Chicago was led by Jimmy Butler's 22 points while the Derrick Rose contributed 21. Boston also loss the battle of the boards by 52-42 margin.

It doesn't get any easier for the Celtics who host Tim Duncan and the San Antonio Spurs on Sunday.

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