As NBA training camps open across the league, the Atlantic Division faces a massive competitive shakeup driven by high-profile player movement, according to league reports. The biggest tremor comes from an in-division trade between the Boston Celtics and Philadelphia 76ers that sent Jaylen Brown to Philadelphia, a move followed by LeBron James’s arrival in the City of Brotherly Love, according to league reporting.
Boston Celtics Pivot After Jaylen Brown Trade
According to league reports, Jayson Tatum is preparing for his first full season since recovering from an Achilles injury, but he will do so without longtime teammate Jaylen Brown. Last season, the Celtics relied on an MVP-level performance from Brown to post a 56-26 record while Tatum mended before a first-round playoff exit. Celtics president Brad Stevens orchestrated the trade sending Brown to the rival 76ers, bringing in former MVP finalist Paul George as part of an offseason haul that also includes center Mitchell Robinson, forwards Chris Cenac Jr. and Dillon Mitchell, and guard Mike Conley, while parting ways with Dalano Banton, Max Shulga, and Nikola Vučević, as reported by the league.
Pro Tip: Watch how Boston integrates Paul George and Derrick White alongside a fully healthy Jayson Tatum to gauge their immediate Eastern Conference contender status.
Brooklyn Nets Reload with Draft Capital and Julius Randle
Following a 20-62 campaign that placed them fifth in the Atlantic Division, the Brooklyn Nets aggressively reshaped their roster by acquiring former All-NBA forward Julius Randle to support forward Michael Porter Jr., according to league sources. The Nets also selected guard Mikel Brown Jr. with the No. 6 pick in the 2026 NBA Draft out of Louisville, alongside adding Tyler Bilodeau, Joshua Jefferson, Keon Ellis, and Moritz Wagner, while losing Nic Claxton, Ochai Agbaji, Malachi Smith, Jalen Wilson, and Ziaire Williams. According to league reports, Brooklyn holds a vital interest in improving this season because the Houston Rockets hold swap rights to the Nets’ first-round pick next year.
New York Knicks Defend Their Championship Crown
Ending a 53-year championship drought, the New York Knicks captured the 2026 NBA title following a 53-29 regular-season run, according to league records. Despite losing center Mitchell Robinson in free agency to the division-rival Celtics, the Knicks kept their core intact around Karl-Anthony Towns, OG Anunoby, Josh Hart, and 2026 Finals MVP Jalen Brunson, while adding veteran center Andre Drummond as insurance alongside draft additions Jack Kayil and Tyler Nickel, per league reports.
Did You Know? The New York Knicks captured their first championship in over five decades during the 2026 postseason, securing the title over the San Antonio Spurs.
Philadelphia 76ers Assemble Star-Studded Lineup
The Philadelphia 76ers finished 45-37 and reached the conference semifinals last season despite an injury-plagued stretch from Joel Embiid, according to league reporting. Moves brought an influx of star power headlined by the acquisition of Jaylen Brown and the monumental free-agent signing of LeBron James, alongside additions of Kentavious Caldwell-Pope, Anfernee Simons, Dean Wade, Ariel Hukporti, and Labaron Philon Jr., while losing Andre Drummond, Paul George, Kelly Oubre Jr., and several others, per league records. Alongside Embiid, Tyrese Maxey, and VJ Edgecombe, the new additions position Philadelphia with a formidable roster entering the new campaign.

Toronto Raptors Build on Internal Growth
The Toronto Raptors secured the Eastern Conference’s No. 5 seed last year and pushed their first-round playoff series to a Game 7, according to league reports. Retaining an offensive core featuring Scottie Barnes and RJ Barrett, the Raptors added Kyle Anderson, Allen Graves, and Jaden Bradley while parting ways with Sandro Mamukelashvili, A.J. Lawson, Garret Temple, and Johnathan Mogbo, per league records. According to league sources, Toronto relies on continued development from rookie standout Collin Murray-Boyles, Ja’Kobe Walter, and Jamal Shead to navigate an increasingly competitive Atlantic Division.
Frequently Asked Questions
Who did the Boston Celtics acquire in the trade with Philadelphia?
According to league reports, the Celtics acquired Paul George, Mitchell Robinson, Chris Cenac Jr., Dillon Mitchell, and Mike Conley in their offseason roster retooling.
Which team won the 2026 NBA Championship?
According to league records, the New York Knicks won the 2026 NBA Championship by defeating the San Antonio Spurs.
What major free agent signed with the Philadelphia 76ers?
According to league sources, LeBron James signed with the Philadelphia 76ers, joining a roster that also added Jaylen Brown.
Join the Conversation
How do you think the LeBron James and Jaylen Brown additions will impact the Philadelphia 76ers’ championship odds this season? Drop a comment below and share your predictions for the Atlantic Division.
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