Watch Boston Celtics vs Philadelphia 76ers — NBA Preseason Free.

What's at Stake

While this preseason opener does not impact the standings, it serves as an important first look at how the Eastern Conference's top contenders have calibrated their rosters for the upcoming campaign. For both coaching staffs, this matchup is a vital opportunity to test bench depth, integrate offseason acquisitions, and evaluate rookies in a high-intensity environment. The historic rivalry between these two franchises adds an extra layer of competitive pride, even with limited minutes for the primary stars.

Head-to-Head

The Celtics and 76ers share a storied and highly competitive history, frequently clashing in both the regular season and deep postseason runs over recent years. Boston has held the upper hand in several of their recent high-stakes encounters, but Philadelphia has consistently pushed them to the limit behind dominant individual performances. As both teams transition from their summer training camps, this game offers a fresh starting point to establish momentum and set the physical tone for their matchups in the year ahead.

Key Players to Watch

• Jayson Tatum — The Celtics' cornerstone looks to establish his rhythm early and showcase any new dimensions added to his game over the offseason.
• Tyrese Maxey — The explosive guard's elite speed and perimeter scoring will be central to testing Boston's perimeter defense.
• Jared McCain — The highly anticipated rookie will likely see significant floor time as he seeks to prove his shooting and playmaking translate to the NBA level.

Prediction

Expect a highly competitive first half as the starting units find their footing before the benches take over for the final two quarters. Boston's superior roster continuity and deep pool of experienced reserve guards should give them the edge in the closing stages of the game. The Celtics are predicted to secure a narrow victory, winning by a margin of five to eight points in a high-scoring preseason affair.