The Sixers couldn’t fully dig themselves out of an early hole and dropped their first game of the season to the Celtics.

The Sixers take on the Celtics on Friday night for the opening match of the NBA Cup tournament, with tip-off from the Xfinity Mobile Arena slated for 7:00 p.m. EST. This article was originally published on www.si.com/nba/76ers/onsi as Sixers To Miss Key Rotation Piece Against Celtics.

The Boston Celtics will look to extend their first win streak of the NBA's 2025-26 regular season with a win against the Philadelphia 76ers.

The Sixers came back from 19 points down to beat Washington 139-134 in overtime on Tuesday in D.C. Tyrese Maxey posted game highs of 39 points and 10 assists in 47 minutes on the second night of a back-to-back. Joel Embiid scored 25 points in 23 minutes, while Quentin Grimes added 23 points off the bench.

Tip-off is scheduled for 7 p.m. ET. You can watch tonight's game on Amazon Prime. You can also stream it on Amazon Prime. Yes, you can. To listen to Friday's Celtics game on the radio, tune in to 98.5 FM The Sports Hub at the time of tip-off, as 98.5 is the flagship station of the Boston franchise, according to their website.

Payton Pritchard and Derrick White had 15 points apiece for the Celtics, who evened their record at .500 by winning their third straight after beginning the season with three consecutive losses. Boston evened a 117-116 season-opening defeat to the 76ers on Oct. 22.

Celtics rookie Hugo Gonzalez brought the effort Boston needed to beat the rival (and previously undefeated) 76ers in Philadelphia.

Jaylen Brown and the Boston Celtics survived a comeback attempt from the Philadelphia 76ers to open their NBA Cup slate with a victory.

"The challenge is they're going to come with a different mentality," Justin Edwards said. "We beat them at home in the opener. We just got to try to build off of what we did last game and then add the pieces that we have and the film that we've been watching just trying to put into the game."