Trail Blazers 

 When, where: Friday, 7:30 p.m., at TD Garden.

 TV, radio: CSN, WEEI (93.7).

 Scoring: LaMarcus Aldridge 20.4, Damian Lillard 19.1, Nicolas Batum 17.9.

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 Rebounds: J.J. Hickson 11.1, Aldridge 7.4, Batum 5.9.

 Assists: Lillard 6.1, Batum 3.1, Aldridge 3.0.

 Head to head: This is the first of two meetings. The Celtics won the only matchup last season.

 Miscellany: Aldridge will be a game-time decision after reinjuring his back in Wednesday’s loss to then-winless Washington . . . The Blazers have lost three in a row . . . Lillard hit four 3-pointers and scored 20 points Wednesday. He is 38 for 93 (40.9 percent) from the arc this season.