After 17 seasons, Al Horford is finally an NBA champion, becoming the first Dominican Republic native to do so as the Celtics earned their 18th title.
In securing their 18th banner, the Celtics have not only silenced their critics but permanently changed the narrative around their key figures, writes John Tomase.
Yahoo Sports' Jason Fitz reacts to the Boston Celtics winning an NBA record 18th championship by beating the Dallas Mavericks 106-88 in Game 5.
Jayson Tatum celebrated the Celtics' 18th championship in iconic fashion, replicating an unforgettable moment from Kevin Garnett 16 years ago.