Video: Blazers' Damian Lillard throws down dunk over Celtics' Tyler Zeller

Blazers guard Damian Lillard did it again on Thursday, throwing down his third big dunk of January in a 90-89 home loss to the Celtics.

Blazers guard Damian Lillard did it again on Thursday, throwing down his third big dunk of January in a 90-89 home loss to the Celtics.

After slamming on the Lakers and the Kings recently, Lillard turned his attention to Boston's seven-foot center, Tyler Zeller. 

With just seconds remaining in the third quarter and Portland leading 70-67, Lillard used a spin move at the top of the key to beat Avery Bradley into the paint. Once there, he took two long strides before lift off, throwing down a right-handed dunk before Zeller was able to come over to help from the right block. 

• GOLLIVER: Lillard fifth among West guards in All-Star Game voting

The Celtics had the last laugh, though, as Evan Turnerhit a last-second, game-winning three-pointer on a broken play to steal the road victory.

Lillard led the Blazers, who were without LaMarcus Aldridge due to a thumb injury, by posting a game-high 21 points, seven assists and six rebounds. Wesley Matthews added 18 points and three rebounds.

Bradley led Boston with a team-high 18 points, four rebounds and four assists. Turner finished with 10 points, eight assists and six rebounds. 

• VIDEO: Highlights of Boston's 90-89 road victory against Portland

Boston improved to 14-26. Portland dropped to 31-13.