Celtics coach Joe Mazzulla just earned a multi-year contract extension, and it seems like the right call for Boston.

Celtics president Brad Stevens has said throughout the offseason that the team wanted Joe Mazzulla to be its coach for a long time. It made that more than a proclamation Friday, announcing it has signed Mazzulla to a multiyear contract extension.

Mazzulla, who led the Celtics to their 18th championship a year ago, was entering the final year of his contract with the team.