section_path: Professional career/Real Madrid (2015–2018)/Early years (2015–2016)
section_name: Early years (2015–2016)
paragraph_text: Early years (2015–2016)
  
  On April 30, 2015, Dončić made his professional debut for Real Madrid in the Liga ACB against Unicaja, making his only three-point attempt in under two minutes of playing time. At 16 years, two months, and two days of age, Dončić became the youngest player to ever play for Real Madrid in the ACB and the third-youngest debutant in league history, behind only Ricky Rubio and Ángel Rebolo. Dončić played five games in the 2014–15 ACB season, averaging 1.6 points, and 1.2 rebounds in 4.8 minutes per game.
  
  In the 2015–16 season, Dončić became a regular member of Real Madrid's senior team. He played against the Boston Celtics in an NBA preseason game on October 8, 2015, collecting four rebounds, an assist, and a block. On October 16, at age 16, Dončić debuted in the EuroLeague, scoring two points in a loss to Khimki. He became the 21st player ever to debut in the EuroLeague before turning 17. On October 18, Dončić recorded 10 points and four rebounds in a 94–61 victory over Gipuzkoa. On November 29, he posted a season-high 15 points, six rebounds, and four assists against Bilbao. With the performance, Dončić set a new ACB record for most points and the highest Performance Index Rating (PIR) in a game for players under age 17. He scored 12 points and grabbed five rebounds on January 7, 2016, against CSKA Moscow in the EuroLeague. After a Real Madrid time-out in the second quarter of the game, Dončić made three consecutive three-pointers, recording nine points in two minutes. Through 39 games in the 2015–16 ACB season, he averaged 4.5 points, 2.6 rebounds, and 1.7 assists. In 12 EuroLeague games, Dončić recorded 3.5 points, 2.3 rebounds, and 2.0 assists per game.
  
  On April 30, 2015, Dončić made his professional debut for Real Madrid in the Liga ACB against Unicaja, making his only three-point attempt in under two minutes of playing time. At 16 years, two months, and two days of age, Dončić became the youngest player to ever play for Real Madrid in the ACB and the third-youngest debutant in league history, behind only Ricky Rubio and Ángel Rebolo. Dončić played five games in the 2014–15 ACB season, averaging 1.6 points, and 1.2 rebounds in 4.8 minutes per game.
  
  In the 2015–16 season, Dončić became a regular member of Real Madrid's senior team. He played against the Boston Celtics in an NBA preseason game on October 8, 2015, collecting four rebounds, an assist, and a block. On October 16, at age 16, Dončić debuted in the EuroLeague, scoring two points in a loss to Khimki. He became the 21st player ever to debut in the EuroLeague before turning 17. On October 18, Dončić recorded 10 points and four rebounds in a 94–61 victory over Gipuzkoa. On November 29, he posted a season-high 15 points, six rebounds, and four assists against Bilbao. With the performance, Dončić set a new ACB record for most points and the highest Performance Index Rating (PIR) in a game for players under age 17. He scored 12 points and grabbed five rebounds on January 7, 2016, against CSKA Moscow in the EuroLeague. After a Real Madrid time-out in the second quarter of the game, Dončić made three consecutive three-pointers, recording nine points in two minutes. Through 39 games in the 2015–16 ACB season, he averaged 4.5 points, 2.6 rebounds, and 1.7 assists. In 12 EuroLeague games, Dončić recorded 3.5 points, 2.3 rebounds, and 2.0 assists per game.