We may have our first confirmed NBA Summer League participant, but it comes from an unexpected source. Croatia was given the chance to enter a national team this year and Antonio Vrankovic is one of the fifteen players on the initial list for senior national team duties this year:
https://www.hks-cbf.hr/vijesti/2019/...reprezentaciju
They will also be playing three tournaments in China so it is possible that not everyone will be at every event. This does seem to make it less likely that he represents them in the World University Games as that would cause a time conflict.