The Dallas Mavericks lost an icon in 2019. Dirk Nowitzki, the team's heart and soul for two decades, rode off into the sunset in May. Taking the sting out of the loss was Dallas' favorite Slovenian import, Luka Doncic. After being selected with the third pick of the 2018 draft, Doncic arrived in Dallas with sky-high expectations. He exceeded them in his rookie year, averaging 21 points, eight rebounds and six assists per game on the way to winning the NBA's Rookie of the Year award.