There is a chance the Mavericks will be without Dirk Nowitzki this weekend.

Nowitzki will travel with the team to Milwaukee and Cleveland, but his return from a knee injury is questionable.

He has missed two games with a sprained right knee.

"It's already better than it was two days ago, but it wasn't good enough to play today," Nowitzki said Thursday night.

"I would have loved to have been out here in front of this crowd, but unfortunately it didn't work. Maybe this weekend, maybe early next week, that's what I'm looking at."

Dallas is 0-2 without Nowitzki.

"Dirk is smart about his body," owner Mark Cuban said. "He'll let us know. The MRIs will let us know. The doctors know what's at stake, so I'm not worried about it. We have a great medical staff, we have a great training staff. We'll do the right thing."