First Al Horford made his return to Boston. Now some more familiar names have surfaced on the Boston Celtics rumor mill. According to Adam Himmelsbach those names include Jeff Green, Kelly Olynyk, and Avery Bradley (in addition to Rudy Gay and Patty Mills). It appears that a prime target is Jeff Green.
According to a league source, the Celtics prefer to pursue a player with extensive experience and are focused on adding size and shooting, and forward Jeff Green is believed to be a primary target. Green played for the Celtics from 2011-2015, including a season and a half with Stevens as his head coach.