"We are excited for Kostas to pursue other professional opportunities," team president Donnie Nelson said in a statement. "Kostas worked very hard to improve his game and we are proud to have been a step in his development. We wish him all the best."
The Philadelphia 76ers selected Antetokounmpo with the 60th pick in the 2018 NBA Draft before trading him to Dallas in a draft-day deal.
Though he made just two brief appearances with the parent club in his rookie season, Antetokounmpo did receive steady playing time with the G League's Texas Legends, averaging 10.6 points, 6.1 rebounds, and 1.4 blocks in 25.4 minutes per game.