He was selected as the first overall pick by the Dallas Mavericks in the 1981 NBA draft and remained with the Mavericks until 1989 .
Aguirre averaged 20 points per game over the course of his 13 - year NBA career .
Aguirre was selected as the first overall pick by the Dallas Mavericks in the 1981 NBA draft and remained with the Mavericks until 1989 .
Aguirre averaged 20 points per game over the course of his 13 - year NBA career .