Danilo Gallinari
Danilo Gallinari signed with the Celtics two offseasons ago before injuring his knee in an Olympic matchup that summer. After missing the first season of his two-year contract with the C's, Boston dealt him to the Wizards as part of the Kristaps Porzingis trade.
Gallinari returned to health this season with Washington before being dealt to the Pistons, who will now let the big man test the open market after waiving him. Gallinari is averaging 7.3 points, 2.8 rebounds, and 1.3 assists, shooting an impressive 45.1% from the floor this season.
Nonetheless, the 35-year-old has seemingly lost a step after the injury to his ACL and looks like more of a liability on the defensive end than he was before the injury. However, he can provide a team with a scoring option off the bench that multiple contenders would be interested in.
The problem for the Celtics? Gallinari seemed to have a bit of bad blood with Boston's front office for dealing him in the offseason. Whether or not he's gotten over how things ended would ultimately be the deciding factor in whether he gets a second go-round in Beantown.