Cooper Neill for The New York Times
DALLAS — Dirk Nowitzki has seen many things in his 21 seasons with the Dallas Mavericks. What he had never seen, until last month, was a fellow Maverick who could attract nearly two dozen autograph seekers in subzero temperatures to greet the team bus on a Thursday morning in Detroit.
Luka Doncic did just that in the 2 a.m. hour of Jan. 31, as the Mavericks pulled into a hotel adjacent to the world headquarters of General Motors, on the unglamorous end of a back-to-back set that began in New York.