Antetokounmpo seeks to become the third member of his family to play in the NBA. His brother Giannis Antetokounmpo, 23, was the 15th pick of the first round in 2013 and now is one of the top players in the league. He averaged 26.9 points per game last season for the Milwaukee Bucks.
Thanasis Antetokounmpo, 25, played in two games in 2016 for the New York Knicks. He was a second-round pick in 2014.
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The 6-foot-10 Antetokounmpo committed to Dayton in June 2016 but sat out his freshman season as a NCAA partial qualifier.
Antetokounmpo debuted in the 2017-18 season and averaged 5.2 points and 2.9 rebounds in 15.1 minutes per game. He led the team with 31 blocks. He appeared in 29 of 32 games and started six games.
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In late March, weeks after the end of a 14-17 season, Antetokounmpo left the program and the university.
“His mindset was he wants to test the waters to see what his prospects are for being in the NBA,” Dayton coach Anthony Grant said. “And he felt it was in his best interest to leave school to do it. I’m not trying to judge his decision in terms of basketball, but the timing of his leaving did surprise me with just six weeks of school left.”