Clayton won't play during Summer League in Salt Lake City due to a mild right knee sprain, Michael Wallace of the Grizzlies' official site reports.
Clayton will be re-evaluated when the team gets to Las Vegas on July 9, but he will skip Memphis' three exhibition games in Salt Lake City. Clayton had a strong close to his rookie season, putting in averages of 9.7 points, 5.7 assists and 1.4 triples per game after the All-Star break.