The 2025 NBA Cup marks the league's third in-season tournament since its launch in 2023. It begins with group play involving all 30 NBA teams, organized into six groups of five teams each within their conferences. Each team faces every other team in its group once, playing a total of four games—two at home and two on the road.
The Boston Celtics, reigning NBA champions, could not advance beyond the group stage in the 2024 NBA Cup. This year, they are placed in Group B along with the Philadelphia 76ers, Detroit Pistons, Orlando Magic, and Brooklyn Nets.
The Celtics opened their 2025 NBA Cup campaign with a narrow 109-108 victory over the Philadelphia 76ers on Friday night.
Eight teams move on to the single-elimination knockout rounds:
The Celtics’ progress depends on their results in the remaining group games against Detroit, Orlando, and Brooklyn.
"The 2025 NBA Cup kicks off Friday night with the first games of group play."
"The Celtics began the group stage Friday night with a 109-108 win over the Sixers."
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The Celtics aim to improve on their last year's NBA Cup performance by winning Group B and qualifying for the knockout rounds in the 2025 tournament.
Author’s summary: The Celtics start the 2025 NBA Cup with a win and a chance to advance from Group B by finishing top or securing a wild card spot in this evolving in-season tournament.