The Boston Celtics' history is rich with significant moments, and July 7 marks several notable events. On this day in 2017, the Celtics traded Avery Bradley to the Detroit Pistons, acquiring Marcus Morris Sr. in a move aimed at clearing cap space after signing Gordon Hayward. Bradley, a key player known for his defensive prowess, spent seven seasons with the Celtics, averaging 12.1 points per game.

Additionally, July 7 saw the signing of Kelly Olynyk, who joined the Celtics in 2013 after being drafted by the Dallas Mavericks, and Travis Knight, whose controversial signing in 1997 cost the Celtics their rights to several other players. Notably, the day also celebrates the birthdays of former Celtics Jim Barnett and John Simmons, both of whom contributed to the team's early history. On a somber note, it marks the anniversary of the passing of Red Wallace, another Celtics icon.