Coach Rick Carlisle has said often the Mavericks' lineups this season will be fluid, aside from starting stars Doncic at the point and Porzingis in the frontcourt.

But Tuesday after the Mavericks' first training camp practice, Carlisle offered insight about how another player could slot into the rotation.

Dorian Finney-Smith will likely play more at power forward than small forward this year, Carlisle said. When the Mavericks use a smaller lineup, Carlisle added, the 6-8, 220-pound Finney-Smith could see time at center.

"He's shown he can guard really virtually any position on the floor, including centers," Carlisle said. "He guarded some really good players last year pretty effectively. ... In Year 4, I look for him to take another step."

Finney-Smith is coming off his best statistical season as a professional, when he posted career-high averages in points (7.5) and rebounds (4.8) and played in a team-best 81 games for the second time in three years.

Carlisle highlighted Finney-Smith's rebounding abilities and defensive flexibility as reason the 26-year-old could handle different roles on the floor and separate from a crowded mix at small forward with Hardaway Jr. and Justin Jackson.

"He's a relentless worker. He has never let up," Carlisle said of Finney-Smith. "That's why as an undrafted guy, when people look back on that draft of 2016, they'll look at him as a guy that should've been in the top 15, and that's a strong credit to him."

Open practice Sunday: Fans will have their first chance to see the 2019-20 Mavericks in action when the team hosts an open practice at the American Airlines Center at 1 p.m. Sunday. The event -- an hour-long scrimmage with entertainment and discounts throughout the arena -- is free and open to the public. Doors open at 11:30 a.m.

On Twitter: @CallieCaplan