Tonight sees the top two sides in the Eastern Conference face-off against one another with Toronto 2.0 games behind Boston.
The Celtics have recovered from a huge dip in form which saw them lost five in six matches during January and have now won four on the bounce.
Their last outing saw Al Horford hit a buzzer-beater to secure the win against the Portland Trail Blazers in the final match of their three-game home stretch.
They return to the road against Toronto, who hold the best home record in the NBA this season at 21-4.
The Raptors lost 95-94 at the TD Gardens back in November with Boston missing Kyrie Irving.
The former Cleveland Cavaliers star is expected to return to action this evening, although Boston will be without Marcus Smart and Shane Larkin.
It’s expected to be a fascinating encounter at the Air Canada Centre, and here’s how you can follow the action live.
How to watch Boston Celtics vs Toronto Raptors on TV
Tonight’s action is scheduled to start at 12:30am GMT and but it is not available to watch on TV in the UK.
BT Sport is the exclusive home of the NBA in the UK for the 2017/18 season.
They will broadcast up to seven lives games per week throughout the regular season and the first and second rounds of the playoffs, as well as every game of the conference finals and NBA Finals.
How to watch Boston Celtics vs Toronto Raptors online
With the game not being shown on TV, it will not be available on the BT Sport app.
Alternatively you can sign up for the NBA League Pass with the option of a day pass.
The NBA League Pass lets you watch every NBA game depending on the package you select.
American viewers can catch the action online by also going for the NBA League Pass.