The Boston Celtics and veteran forward Blake Griffin have agreed to a one-year, fully guaranteed contract for the upcoming NBA season.

The reigning Eastern Conference champion Celtics add some needed depth in the front court, with forward Danilo Gallinari tearing his ACL while playing for Italy in the FIBA World Cup and starting center Robert Williams III recently having knee surgery that will keep him out 8-12 weeks.

Griffin, a former six-time All-Star and five-time All-NBA forward, is coming off a two-year stint with the Brooklyn Nets, where he averaged 7.5 points per game and 4.3 rebounds a game in 82 games and 34 starts.

The 33-year old is entering his 13th NBA season and fourth different team, with career averages of 19.8 points per game and 8.2 rebounds per game while playing on the Los Angeles Clippers, Detroit Pistons and Brooklyn Nets.