The Memphis Grizzlies signed forward James Johnson of the NBA Development League’s Rio Grande Valley Vipers, the team announced today.

Johnson (6-9, 245) joins the Grizzlies after averaging 18.5 points, 9.1 rebounds, 4.8 assists, 1.90 steals and 3.40 blocks on .496 shooting in 29.9 minutes in 10 games (all starts) for Rio Grande Valley this season. The 26-year-old is the only D-League player this season to rank in the top 15 in scoring (14th), rebounding (12th) and assists (14th) by average. He also places third in the D-League in blocks per game and is tied for seventh in steals per game.

Johnson owns NBA career averages of 6.3 points, 3.2 rebounds, 1.4 assists and 0.98 blocks on .443 shooting in 18.3 minutes in 219 games (87 starts) in four seasons with the Chicago Bulls (2009-10 to 2010-11), Toronto Raptors (2010-11 to 2011-12) and Sacramento Kings (2012-13). He played the 2013 preseason with the Atlanta Hawks but was waived on Oct. 21, 2013.