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For the most part, the 2016 and 2017 NBA draft classes performed up to par or exceeded expectations in summer league. But there were a handful of young prospects who struggled, including two Top 10 picks from this past June.

There was also a pair of returning players, one with something to prove and another looking to build on a strong rookie season, who underwhelmed in their limited action.

But the most frustrating part of summer league were the injuries, both pre-existing and new ones suffered during the event.

Overall, the following underachievers were picked based on the eye test, inefficiency and expectations relative to where they were drafted.