The Boston Celtics have signed guard Caleb Grill to a training camp contract. Boston has also officially signed Devin Carter to camp deal as well.

Both Grill and Carter will join Tucker DeVries and Milos Uzan in competing for spots on the Celtics roster. Boston has one open standard roster spot and one open two-way roster spot. The Celtics are likely to leave the standard spot open going into the regular season, as filling it would push the team over the luxury tax.

Grill split the last G League season between the Windy City Bulls and Greensboro Swarm. The 6-foot-3 guard averaged 9.9 points, 3.0 rebounds and 1.1 steals in 41 games.