Boston go into Game 4 of the NBA Finals with an opportunity to sweep Dallas and clinch the championship.
The Celtics opened the series with back-to-back wins at home, downing the Mavericks 107-89 and 105-98, and backed that up with a 106-99 road win in Game 3.
This 3-0 start against Dallas has continued a dominant playoff run that has seen them win 14 of their 16 games, and each of the last 10.
Boston, who compiled a league-best 64-18 record during the regular season, split the first two games of their first-round series with Miami, but that Game 2 defeat has proven to be a rarity.
The Celtics’ bounced back with a couple of blowout wins over the Heat on the road, and then returned home to clinch the series with a 118-84 victory.
They then split the first two games of the series with Cleveland, but just like in the first round they came storming back from a loss with three consecutive wins to wrap things up.
Boston reeled off 106-93, 109-102 and 113-98 victories over the Cavaliers to advance to the Eastern Conference Finals.
There the Celtics made straightforward work of Indiana, sweeping the Pacers in four games thanks to 133-128 (OT), 126-110, 114-111 and 105-102 wins.