It’s the first night of group play in the NBA Cup and the action kicks off with an Eastern Conference matchup on Prime Video. Tonight’s NBA on Prime doubleheader starts with the Boston Celtics visiting the Philadelphia 76ers,

Want to watch the basketball game online? Fans can catch Cavs vs. Mavs on Sling TV. The Cleveland Cavs vs. Boston Celtics takes place at TD Garden in Boston, Massachusetts, on Wednesday, Oct. 29, starting at 4 p.m. PT/7 p.m. ET. The game broadcasts on ESPN.

Follow the action from a 10-game night in the NBA, featuring Cavaliers-Celtics, Lakers-Timberwolves and Nikola Jokić's quest for a triple-double milestone.

Cavs all-star shooting guard Donovan Mitchell was a late addition to the injury report for Wednesday's game in Boston.

BOSTON -- The Celtics suffered their worst loss of the season on Saturday night as a well-rested Rockets squad crushed Boston 128-101 at TD Garden. The Rockets ended the Celtics’ three-game winning streak with the convincing win as they took a 13-point first quarter lead and did not look back, leading by as many as 36 points in the convincing rout.

Preview the Philadelphia 76ers' NBA matchup with Boston, including live stream, TV channel, odds, and game information.