Dirk Nowitzki has not made a decision about his future as he will make up his mind completely depending on his health.
"If I miss another 30 to 40 games in a row, then obviously, it's not meant to be," he said. "But if I can stay sort of healthy like I did at the end of the season, when I thought I moved OK and had some good games, then maybe we'll do two more [seasons]. But we'll see how it goes."
Nowitzki had an Achilles issue last year that he needed two months to recover from.
"It's been a long summer, way too long," he said. "I've been busting my butt trying to get ready, get in game shape. I've progressed well, and I'm looking forward to camp and play some of those new guys. ...
"I don't anticipate any problems, but you know, at 39, I guess anything is possible."
Nowitzki figures to play more at center this season.
"I have no idea, really," he said of his role. "Obviously, we're pleased to have Nerlens [Noel] back at the five with his athleticism. We got a lot of bigs now, with [Josh] McRoberts hopefully healthy and playing, and Jeff Withey, who showed he can play and he's more athletic than you think. And Salah [Mejri] wants his minutes as a shot blocker.
"And I still think the game is going smaller. Harrison [Barnes] is going to see a lot of minutes at the four."