NBA training camps have officially begun, with media day marking the start for most of the league's 30 teams and on-court practice beginning Tuesday -- exactly three weeks before the New York Knicks raise their 2026 NBA championship banner. Bobby Marks examines roster, contract and fit questions for all 30 teams heading into the 2026-27 season.

The Atlanta Hawks addressed frontcourt size concerns by drafting forward Zuby Ejiofor at No. 23 in June and re-signing center Jock Landale. Key dates include Oct. 19 deadline to extend Onyeka Okongwu and Nov. 2 deadline for Asa Newell's third-year option. Mouhamed Gueye and Henri Veesaar face injury setbacks.

Boston Celtics president Brad Stevens emphasized the need to generate looks at the rim after their first-round loss to the Philadelphia 76ers. With Jaylen Brown replaced by Paul George and Mitchell Robinson added for frontcourt help, the Celtics may adjust their offensive philosophy. Oct. 19 marks the deadline to extend Payton Pritchard.

The Brooklyn Nets, who drafted an NBA-record five first-round picks in 2025, need positive development from their young core. Only Egor Demin averaged at least 25 minutes last season. Brooklyn added 2026 No. 6 pick Mikel Brown Jr. and acquired Julius Randle to bolster playmaking.