The Celtics CommUNITY Crew left an impact! Here's the new basketball court at Mattahunt Elementary School.

Official signed Celtics jersey presented to PR Chief Jeff Twiss to celebrate his 30 years (& counting!) w/ the team!

VP of Corp. Partnerships Ted Dalton is busy renovating the playground at Mattahunt Elementary w/ the Community Crew:

Celtics interns are hard at work on the Arbella/Celtics Community Crew painting signs at Mattahunt Elementary.

Dave Cohen & Craig Cassano from the Celtics Community Crew are hard at work at the Mattahunt Elementary School.

Ainge addresses the media at today's Shamrock Foundation USI Shamrock Classic at the Weston Golf Club.

Celtics Co-owner Wyc Grousbeck and VP of Tech Jay Wessel repaint the racetrack at the Marshall School. #dayofservice

C's staff Andrew Sherwin and Maureen O'Neill lay down lines for a foursquare court at the Marshall School. #dayofservice

Staff from Havard Pilgrim Health Care finished up a map of the US in the playground at the Marshall School #dayofservice

Shamrock Foundation Director Kate Green repaints the court at the Marshall School in Dorchester. #dayofservice

Celtics CMO Shawn Sullivan repaints a racetrack in the playground at the Marshall School in Dorchester. #dayofservice

The court at the Marshall school is coming back to life thanks to City Year, HPHC and the Celtics staff. #dayofservice

Digital Media Coordinator Nels McLaughlin repaints the sign at the John Marshall School at HPHC the Day of Service.

Account Services Coord. Alyssa Tingle paints a flower box at the Marshall School at the HPHC Day of Service.

Celtics Sr. Manager, Biz Development Nicole Federico helps refurbish the basketball court at Marshall Elementary School

Staff including president Rich Gotham, trainer Ed Lacerte and PR man Jeff Twiss give back at the HPHC Day of Service.

Celtics legend Dave Cowens addresses the crowd at @tdgarden for the @Celtics Suit Rental party.

Celtics legend Dave Cowens addresses the crowd at the @TDGarden for the @Celtics' Suit Rental onsale party.

Bird at #TheTradition talking Dream Team. "When we went over there it was all business. Move the ball and dominate."

E'Twaun Moore tells @KristineLeahy that his family's favorite team growing up was always the @Celtics.