BRIGHTON, MA -- Celtics Interim Head Coach Joe Mazzulla said being an All-Star Head Coach means nothing. Mazzulla and his staff will coach Team Giannis on Feb. 19 at the NBA All-Star Game after clinching the east’s best first-half record. CLNS Media's Bobby Manning reports LIVE from an eventful Celtics practice where legends Paul Pierce and Kevin Garnett made a special appearance.

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