There is a new newest member of the Grizzlies, per Eric Pincus of Basketball Insiders:
The $845K that Christopher will make is non-guaranteed. That gives the Grizzlies four partially or non-guaranteed deals on the roster including Christopher, JaMychal Green, Lazeric Jones and Michael Holyfield. Memphis has 14 guaranteed contracts on tap for next season, meaning those four players will be fighting for one, singular roster spot.
The Grizzlies invited Christopher to training camp last year, but let him go during the last round of cuts before their roster was finalized. He ended up playing four games for the Jazz this past season, the 27-year-old's first four contests in the NBA.