Brian Windhorst basically dropped a Kendrick Lamar-esque diss track on Luka Doncic following the Dallas Mavericks' Game 3 loss to the Boston Celtics on Wednesday ... going in on the NBA superstar for his "unacceptable" performance.
The Slovenian baller dropped 27 points before fouling out with four minutes left in the Finals matchup ... adding another chapter to his ongoing beef with officials as he visibly and audibly expressed his frustration with calls throughout the contest.
Brian Windhorst BLASTS Luka Donu010diu0107 on 'SportsCenter with SVP' after Game 3 of the NBA Finals.