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October 6, 2026 at 6:05 AM UTC

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2026-27 NBA season preview: Opening day tripleheader and the storylines that will define the year

The NBA opens Tuesday, Oct. 20, with Celtics-Pistons, 76ers-Knicks and Thunder-Spurs on NBC and Peacock. Here are the star moves and contract questions that will shape the season.

NBA preseason: Answering big questions for all 30 teams — espn.com
NBA preseason: Answering big questions for all 30 teams — espn.com

The 2026-27 NBA regular season opens Tuesday, October 20, 2026, with a three-game slate on NBC and Peacock, and the lineup shows how much has changed since last season. The Boston Celtics visit the Detroit Pistons at 3:00 p.m. ET at Little Caesars Arena. The Philadelphia 76ers play at the New York Knicks at 7:00 p.m. ET at Madison Square Garden. The Oklahoma City Thunder close the night at the San Antonio Spurs at 9:30 p.m. ET at Frost Bank Center.

The middle game is the marquee matchup. The Knicks are the defending champions, and the Sixers have had perhaps the biggest offseason of any team. Boston traded Jaylen Brown to Philadelphia on July 6 for Paul George and future picks. Before the month was over, the Sixers also added LeBron James, the league's all-time leading scorer. How James and Brown fit together in Philadelphia, and how deep the East has become around them, is one of the central questions of the year.

The summer's other seismic move involves Giannis Antetokounmpo. Milwaukee sent the two-time MVP to the Miami Heat just before the June draft in a package headlined by guard Tyler Herro and a haul of picks. The Bucks now begin a season without him for the first time since 2012-13, and ESPN's reporting raised the question of whether more moves are coming. Boston had pursued Antetokounmpo heavily before turning to the Brown trade, so his arrival in Miami reshaped plans well beyond South Florida.

Those are not the only stars on new teams. ESPN counts six 2026 All-Stars who changed teams this summer, and 15 players with at least one All-Star selection in the past five seasons who are set to play for new franchises. That count includes Anthony Davis and Damian Lillard, who moved last season but have not yet played for their new teams because of injuries. Among the other moves:

NBA preseason buzz: Latest on trades, news and intel — ESPN
NBA preseason buzz: Latest on trades, news and intel — ESPN

- The Lakers traded for center Walker Kessler.
- LaMelo Ball joins Anthony Edwards in Minnesota.
- Ja Morant gets a fresh start in Portland.
- Kawhi Leonard is back with the Raptors after a trade.

That volume of movement makes early-season chemistry and health harder to predict than usual.

Opening day also opens a debate about the league's best team. ESPN's Future Power Rankings, which project the next three seasons, put Oklahoma City first, with top marks for players and management. The Thunder open in San Antonio against a Spurs team that ESPN's insiders describe as having collapsed in the Finals. Whether San Antonio can bounce back, and whether the Thunder or the Spurs are better positioned for the long run, is a live argument. The two meet on the biggest stage the schedule offers.

In Boston, the first game also tests a new identity. The Celtics are now built around Jayson Tatum, who returned late last season from the torn Achilles he suffered in the 2025 playoffs. Around him are George and new additions Mitchell Robinson and Mike Conley. The starting lineup is unsettled. Some observers expect Payton Pritchard to come off the bench again, and the backup-center job could go to either Neemias Queta or Robinson. Coach Joe Mazzulla has yet to settle those questions. Whether the Celtics can keep pace in a stronger Eastern Conference without Brown is the central analytical question of their season, and their first game is a road trip to Detroit.

The Pistons come into the opener with their own storyline. Center Jalen Duren has returned to Detroit after a contract dispute and called the city "home." ESPN gave the Pistons a B for the deal. The resolution removes a distraction for a team that will be tested immediately by Boston.

In New York, the champions have a different off-court issue. Karl-Anthony Towns said on Monday that "It don't look good" for a contract extension with the Knicks before the season starts. ESPN's Shams Charania called the negotiations "a growing cloud around the New York Knicks." The Knicks must manage the situation while facing a loaded Sixers roster in their opener. It is a notable subplot for a title-holder that ESPN's own rankings still treat as a top-tier team.

The individual landscape is shifting as well. ESPN's NBA Rank countdown, which began with players Nos. 100-51, included four rookies among the league's top 100 players. The class will have a chance to show whether those placements were deserved.

The preseason has also produced some health news. Clippers guard Max Strus suffered a partial tear of the plantar fascia in his right foot and will be reevaluated in four weeks. The Hornets shut down Derrick White for the rest of the preseason with a calf strain. Spurs forward Harris will miss the preseason with a calf strain. None of these injuries decides a season, but they show how thin the margins are before the first tip.

Preseason began on Oct. 3 with the Heat and Raptors in Quebec City, a game that offered an early look at both Antetokounmpo in Miami and Leonard in Toronto. The regular season will tell us much more. With a champion facing a superteam in New York, a rebuilt Boston on the road in Detroit, and a possible Thunder-Spurs rivalry beginning in San Antonio, opening day covers most of the questions that will run through the year.

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