The Mavs are attempting to become the first team in NBA history to overcome a 3-0 deficit to win a playoff series, a feat 146 others have failed to accomplish. Dallas took a step in that direction with a 119-109 win in Tuesday’s Game 4 at the American Airlines Center. “I mean, I still believe we can win, you know,” Doncic said. “Swept or not swept, in the end, if you lose, you lose. Don’t matter how many we win. We have to go game by game. We’re going to believe until the end.”