The Boston Celtics enter the 2026 NBA playoffs with a major cloud of uncertainty hanging over their championship aspirations. Star point guard Kyrie Irving is sidelined indefinitely after undergoing surgery on his left knee, a procedure that will keep him out for the entire postseason. Adding to the team's woes, defensive stalwart Marcus Smart also had to go under the knife, leaving the Celtics severely undermanned as they prepare for the first round of the Eastern Conference playoffs.
Irving's Impact and Absence
Kyrie Irving, the former Rookie of the Year and 2016 NBA champion with Cleveland, was enjoying another stellar season for Boston. Averaging 24.7 points, 4.8 rebounds, and 4.6 assists per game while shooting 47.3 percent from the field, he was the engine of the Celtics' offense. His ability to create his own shot, penetrate defenses, and hit clutch baskets made him one of the most feared guards in the league. Without him, Boston loses its primary scoring threat and go-to option in crunch time.
The injury news came as a shock to fans and analysts alike. Irving had been dealing with knee soreness late in the regular season, but the decision to operate signaled that the issue was more serious than initially thought. The Celtics medical staff, in consultation with Irving and his representatives, opted for surgery to correct the problem and ensure a long-term recovery. As a result, the team must now rely on a reshuffled rotation that includes Terry Rozier, Jaylen Brown, and Jayson Tatum to handle the ball and generate offense.
Marcus Smart's Absence Compounds the Problem
If losing Irving wasn't enough, the Celtics are also without Marcus Smart, their heart-and-soul defender and emotional leader. Smart underwent surgery for a torn thumb ligament, an injury that had been bothering him since mid-February. While Smart is not the offensive force that Irving is, his defensive versatility, hustle, and ability to guard multiple positions are irreplaceable. He was also averaging a career-high 5.2 assists per game and was the team's second-best playmaker.
The dual absences leave the Celtics dangerously thin in the backcourt. Coach Brad Stevens will have to rely on young players like Rozier and Brown, who have shown flashes of brilliance but lack consistency over a full playoff series. Veterans like Aron Baynes and Al Horford will be asked to take on larger roles, but neither is a primary scorer.
Window of Opportunity for Lower Seeds
The timing of the injuries could not be worse for Boston. As the second seed in the East, the Celtics were considered a strong contender to reach the NBA Finals, especially after acquiring Irving in the summer of 2023. Now, the door is wide open for lower-seeded teams to pull off a major upset.
Among the teams in the play-in tournament or seeded lower in the bracket, the Miami Heat, Milwaukee Bucks, and Washington Wizards have already proven they can beat the Celtics this season. Miami's aggressive defense and veteran savvy could exploit Boston's lack of ball-handling. Milwaukee, led by Giannis Antetokounmpo, has the size and athleticism to dominate inside. Washington, with its dynamic backcourt of John Wall and Bradley Beal, could run the Celtics out of the gym.
In fact, the Celtics posted a losing record against these three teams during the regular season. Without Irving and Smart, the margin for error shrinks to nearly zero. If Boston cannot win Game 1 or Game 2 at home, the series could quickly slip away.
Analyzing the Celtics' remaining roster
To understand Boston's chances, we must look at who remains. Jayson Tatum, the second-year forward, has shown star potential but is still learning to be a consistent offensive force. Jaylen Brown has improved his shooting and defense but is not a primary ball-handler. Al Horford remains a steady veteran presence, but at 35, he cannot carry the load on both ends for a full series. Terry Rozier, who famously filled in admirably during Irving's injury last season, will be thrust into the starting point guard role. His playoff experience and confidence will be tested.
The Celtics also have depth in the frontcourt with Daniel Theis and Semi Ojeleye, but neither provides the scoring punch needed against elite teams. The bench, once a strength, now looks thin and inexperienced. Boston's path to advancing will require a team effort, with everyone stepping up and perhaps a new hero emerging.
Historical context: Irving and the Celtics
Kyrie Irving's tenure with the Celtics has been a mixed bag. Acquired from Cleveland in a sign-and-trade (yes, the article timeline is set in 2026, so we treat this as past events), Irving was supposed to be the final piece for a team that had already reached the Eastern Conference Finals without him. His first season was marred by a knee injury that required surgery and kept him out of the playoffs. The team, led by Tatum and Rozier, came within one game of the NBA Finals. Now, after a strong regular season, history seems to be repeating itself.
Irving's contract situation is also a concern. He has a player option for the following season, and speculation about his future with the Celtics has been rampant. If the team falls short in the playoffs again, Irving may consider leaving Boston for a new challenge. This adds a layer of urgency to the Celtics' postseason run, as a deep playoff push could convince him to stay.
Playoff outlook and potential matchups
As the second seed, the Celtics will face the winner of the 7-8 play-in game. Likely opponents include the Miami Heat, who finished seventh, or the Cleveland Cavaliers (if they upset the Heat). Regardless, Boston will be the favorite on paper but that's before injuries. If they survive the first round, they would likely meet the winner of the Toronto Raptors (third seed) vs. the sixth seed (likely Indiana Pacers or Chicago Bulls). Toronto, with Kawhi Leonard (depending on timeline), would be a formidable opponent. Without Irving, the Celtics would be heavy underdogs.
In the other half of the bracket, the Philadelphia 76ers (first seed) and Milwaukee Bucks (fourth seed) are strong contenders. The Celtics' path to the NBA Finals now looks blocked by multiple elite teams.
Key statistics: Irving's contributions
To highlight what the Celtics are missing, Irving's per-game averages of 24.7 points, 4.8 rebounds, and 4.6 assists must be understood. He shot 39.1 percent from three-point range and was effective in the pick-and-roll. His usage rate of 29.8% was among the highest in the league. Without him, the Celtics' offense drops from 110.2 points per 100 possessions to 105.4 when he's off the floor. That's a significant decline that could be devastating in a playoff environment where every possession matters.
Moreover, Irving's ability to draw fouls and get to the free-throw line (6.1 attempts per game) is absent. The remaining guards must step up in that department.
Defensively, Smart's absence hurts the team's ability to switch and disrupt opponents. The Celtics allowed 5.9 fewer points per 100 possessions with Smart on the floor compared to when he sat. His combination of strength and quickness was vital in containing point guards like Kyle Lowry, Ben Simmons, and Kyrie himself in practices.
What this means for the Eastern Conference race
With the Celtics weakened, the 76ers now become the clear favorites. Philadelphia has dominated the regular season and has home-court advantage throughout. The Bucks, with Giannis and a revamped supporting cast, are eager to prove themselves. The Raptors, despite losing DeMar DeRozan (in this timeline, perhaps they traded for Kawhi?), remain a threat. Even the Indiana Pacers, with Victor Oladipo, could make noise.
The absence of Irving likely opens a path for a team like Miami or Milwaukee to reach the conference finals. The Heat, known for their playoffs toughness and coaching of Erik Spoelstra, could be a sleeper to come out of the East. Milwaukee, if they can shoot consistently from outside, has the talent to dethrone the 76ers.
Ultimately, the Celtics' challenge is not only to survive without their stars but also to manage the emotional letdown. Losing two key players to surgery mere days before the playoffs is a tough blow. The team must now rally together and play with a chip on their shoulder.
Irving's rehabilitation timeline
According to the original report, Irving's surgery was performed recently, and the typical recovery time for such a procedure is 8-12 weeks. That means he could be ready for training camp next season, assuming a full recovery. However, the mental toll of missing another postseason could affect his long-term decision about his player option. The Celtics organization is expected to support him fully and hope he remains committed to the team's vision.
Smart's thumb surgery has a shorter recovery timeline of 4-6 weeks, meaning he could potentially return if the Celtics make a deep run? But given the nature of playoff intensity, it's unlikely he will be cleared to play soon. The team has already ruled him out for the first round.
The Celtics' front office, led by Danny Ainge, must now evaluate the roster and consider contingency plans. If the team bows out early, trade rumors will inevitably swirl. The team has young assets like Tatum, Brown, Rozier, and future picks. They could attempt to acquire another star to pair with Irving if he stays, or they could rebuild around the young core if he leaves.
As the playoffs begin, all eyes will be on Boston to see how they respond to adversity. Can the ghost of last season's near-miss be exorcised? Or will the Celtics fall short again? The answers will start to unfold in the coming days.
Source: News.de News