Former Celtics and Knicks swingman Bill Walker has signed to play in the D-League and will be assigned to a team Tuesday, agent Mike Naiditch told Jorge Sierra of HoopsHype (Twitter link). Walker was recently linked to the Grizzlies as they sought to fill out their roster following last month's three-for-one trade with the Cavs.
Walker, a second-round draft pick in 2008, spent four seasons in the NBA, but hasn't returned to the league since the Knicks waived him shortly before the end of the regular season last year. He's averaged 5.8 points and 37.9% three-point shooting in 15.2 minutes per game for his career. His best season by far took place in 2009/10, when he notched 11.9 PPG and shot 43.1% from behind the arc in 27.4 MPG with the Knicks after coming over from Boston in a deadline trade.