"We've got to take some ownership," Jayson Tatum said. The post ‘Inconsistent’. ‘Too casual.’ ‘Need to man up’: Celtics can’t afford to take this Christmas loss lightly appeared first on Boston.com.

As a dangerous January schedule looms, Boston hasn't been playing up to its standard recently, falling 4 games out of first in the East.

The Celtics fell to 6-5 in December after a 118-114 loss to the 76ers in a Christmas clash at TD Garden. "We've got to look in the mirror," said Jayson Tatum.

You probably felt a little like this if you watched the Boston Celtics’ 118-114 loss to the Philadelphia 76ers on Christmas. It was a day when Celtics fans experienced almost every emotion possible while watching their team battle it out;