NBA mailbag: Are the Celtics still a title contender? Which teams are flying under the radar?

After what has felt like the longest offseason in recent memory, the 2026-27 NBA season is right around the corner. In less than three weeks, all 30 teams will answer wide-ranging questions about their summer business and future expectations. But why wait? Thanks to those of you who sent in inquiries of your own, let’s get to it.Join or create a Yahoo Fantasy Football league for the 2026 NFL seasonAre the Celtics still an NBA title contender after losing Jaylen Brown? — @thomasnoble1