After last playing in the NBA in 2015-16, Antetokounmpo signed a contract with the Bucks in July of 2019. That put him on the same team as his brother, Giannis. He made his Bucks debut Nov. 1 in a win over the Magic, posting two points, two rebounds and one assist. He scored two points again in his next appearance, Nov. 16 in a win over the Pacers. Two appearances later, Dec. 2 in a victory over the Knicks, Antetokounmpo scored a career-high 10 points to go with three assists and one rebound. On Mar. 3 against the Nuggets, he grabbed a career-high six rebounds to go along with nine points, three assists, two steals and one block. During his next appearance, which was in the NBA bubble in a win over the Wizards, Antetokounmpo dished a career-high four assists, plus posted eight points and four rebounds. During the next game -- the last of the seeding contests and the last of Antetokounmpo's appearances -- the second-year forward recorded two points, two assists, one rebound and one steal. Antetokounmpo also made two appearances in the G League with the Wisconsin Herd. During those contests, he totaled 34 points, 15 rebounds, four assists, two steals and two blocks.

Antetokounmpo spent the 2018-19 season overseas in Greece. He appeared in 55 games for Panathinaikos, starting 13. Antetokounmpo saw 12.9 minutes per game, averaging 4.9 points and 2.5 rebounds. He shot 52.4 percent from the field, 26.2 percent from three and 47.3 percent from the free-throw line. Antetokounmpo's PER was 13.7. The team was quite successful, posting a 39-16 record in his time there.

After spending the 2016-17 season with MoraBanc Andorra of the Spanish ACB, Antetokounmpo took his talents to Panathinaikos of the Greek HEBA A1. He appeared in 67 games, starting 38 and playing 13.7 minutes per game. He averaged 5.6 points (55.8 FG%, 30.5 3P%, 58.2 FT%) and 2.7 rebounds. Antetokounmpo's best showing was Mar. 25 against Aries Trikala BC. He drew the start, playing 22 minutes and posting a season-high 25 points (9-13 FG, 2-4 3Pt, 5-7 FT), five rebounds, two steals, one assist and one block. His other season highs were, respectively, seven rebounds, three assists, three steals, three blocks and two three-pointers.

Antetokounmpo spent the 2016-17 season overseas with MoraBanc Andorra of the Spanish ACB. He appeared in 34 games with the squad, starting eight contests. In his 17.4 minutes per game, Antetokounmpo averaged 7.8 points and 3.8 rebounds. He also shot 46.0 percent from the field, 22.4 percent from three and 55.3 percent from the charity stripe. Arguably his best game of the season was May 10 against Real Betis Energia Plus. Antetokounmpo drew the start and played 23 minutes at small forward, recording a season-high 19 points (6-11 FG, 3-7 3Pt, 4-9 FT), six rebounds, one assist, one steal and one block. Antetokounmpo's other season highs stood at, respectively, 11 rebounds, four assists, three steals, three blocks and three three-pointers.

Antetokounmpo played in the D-League for the Delaware 87ers during the 2013-14 season. He averaged 12.0 points, 4.2 rebounds, 2.1 assists, 1.3 blocks and 1.1 steals. His play prompted the New York Knicks to select him with the 51st overall pick in the 2014 NBA Draft. He proceeded to spend all of that season in the D-League as well with the Westchester Knicks. Across 33.0 minutes per game, he averaged 13.8 points, 6.1 rebounds, 1.6 assists, 1.6 steals and 1.6 blocks. Antetokounmpo made his NBA debut during the 2015-16 campaign, playing in two straight games Jan. 29 and Jan. 31. In six total minutes, he accumulated six points and one rebound. Ultimately, he spent the vast majority of the 2015-16 campaign in the D-League with the Westchester Knicks again. He averaged 10.9 points, 4.7 rebounds, 1.4 assists and 1.2 blocks in 27.4 minutes. One of his best games of the season took place Dec. 18 in a victory over the Red Claws. Antetokounmpo played 32 minutes and recorded 26 points (10-12 FG, 1-1 3Pt, 5-5 FT), four blocks, three rebounds and two steals.