Luka Doncic, with a towel draped over his shoulders, sat in a high chair to take questions Tuesday afternoon for the first time since Media Day on Sept. 30. After a swig of Gatorade, the Mavericks star spoke briefly about a calf contusion in his left leg that derailed his participation in the team’s four-game preseason schedule.

Doncic said the Mavericks’ early conversations have centered around setting the tone early in the season. “We’re not joking around,” Doncic said. “Like I said, we’ve worked hard. The new guys that