The Grizzlies have reached an agreement on a one-year contract with free agent Ronald Dupree, according to agent Mark Bartelstein (Twitter link via ESPN.com's Marc Stein). Terms of the deal aren't known, but I'd guess it's a non-guaranteed invite to training camp.
Dupree, 31, has appeared in 157 games for five teams over the course of his six-year NBA career. However, since playing in a handful of games for the Pistons and SuperSonics in 2007/08, the 6'7" forward has appeared in just three games, for the Raptors in 2010/11. Dupree, who played for the 2004/05 Pistons that fell to the Spurs in the NBA Finals, has averaged 3.5 PPG and 2.2 RPG in 11.2 MPG in his career.
Dupree will be the 15th player under contract for the Grizzlies, though only 13 of those deals are guaranteed. Dupree and D.J. Kennedy figure to be among the players with a chance to earn one of the final two roster spots, if Memphis heads into the season with a full 15-man roster.