The Boston Celtics have exceeded expectations this season. They were expected to struggle as they were without superstar Jayson Tatum for the majority of the season as he rehabbed from last season’s Achilles injury. Tatum was able to return late in the year and fellow star Jaylen Brown had already led the Celtics to a solid season. The Celtics return to the playoffs with a first-round matchup against the Philadelphia 76ers.

On paper, Boston enters the series as the clear favorite. Yet the 76ers, fresh off a Play-In victory over the Orlando Magic, arrive with a dangerous edge that could expose cracks in the Celtics’ armor from the opening tip. The Sixers will be without injured center Joel Embiid (appendectomy) in the early part of the series, but that absence only sharpens the spotlight on their true X-factor: Tyrese Maxey.
Maxey led Philadelphia with an average of 28.3 points per game this season. More than just a scorer, he is a dynamic playmaker capable of going on a hot streak and creating opportunities for his teammates. Against Boston’s vaunted active defense, Maxey’s combination of speed, scoring instinct, and court vision poses an immediate threat. If he catches fire early, the Celtics could find themselves vulnerable and bleeding points before they can establish any rhythm.
Clutch Points insider Brett Siegel highlighted exactly this danger in the site’s podcast, singling out the Celtics-Sixers matchup as one of the most intriguing first-round storylines.
“If there’s one team coming out of the play-in tournament that I think can pull off an upset, I think this is the match-up to watch,” Siegel said. “I think that’s going to be very, very interesting and I wouldn’t be shocked if it’s 2-2 heading into Game Five.”
History only adds fuel to the fire. The Celtics and 76ers have met 22 times in the postseason, with Boston holding a 15-7 edge in series victories. Philadelphia’s last postseason triumph over the Celtics was a grueling 4-3 victory in 1982. Since then, the Celtics have won the last seven playoff meetings between the rivals. Yet rivalries are built on the possibility of the unexpected, and this year’s version of the Sixers carries a different kind of menace.
Without Embiid anchoring the paint, Philadelphia’s offense will flow through Maxey’s hands. That places an enormous early burden on Boston’s defense to contain him. One or two explosive nights from the 76ers’ guard could swing momentum, force adjustments, and turn what many expect to be a routine series into a war of attrition.
The Celtics have the talent and depth to prevail. Tatum’s return and Brown’s leadership give them every advantage in a long series. But the warning is clear: ignore Tyrese Maxey at your peril. The Sixers’ X-factor is primed to strike right out of the gate, and if Boston is not ready, they could be left vulnerable and bleeding long before the series reaches its expected conclusion.