Wroten, 20, was the Grizzlies' 25th overall pick. He averaged 2.6 points and 1.2 rebounds in 7.8 minutes per game.
Philadelphia is still working to meet the minimum team salary requirement of $52.811 million as it works to construct a roster before the start of training camp in September.
Wroten, a 6-foot-5 left-hander, left Washington in 2012 after an excellent freshman season in which he was the Huskies' second-leading scorer at 16 points per game.
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