The Celtics wrapped up Summer League in Las Vegas this past week following the debut of three new rookies on the roster. Boston has started tweaking the roster in the aftermath with the release of JD Davison Thursday, but let’s talk about the roster, potential additions and more in this week’s mailbag.

An anonymous Celtics executive still believes Boston can reach the playoffs despite Jayson Tatum's brutal injury and offseason changes.

Brown reportedly gives Muay Thai credit for helping augment his footwork, body control, and overall mobility, and with costar on the wing Jayson Tatum out for the season as he rehabs a torn Achilles, Brown will need every advantage he can muster to keep Boston in the thick of things in an improving NBA.