""The rest is just hard work," said Nowitzki, who is showing up at the Mavs' practice court for nightly workouts with longtime mentor Holger Geschwindner.

"Every series of slumps, one of them's gotta be the worst," Cuban said. "One of them's gotta be bad, so that's what this is. I'm not worried about it at all. He's frustrated. His shot's not going. It's probably in his head some, but Holger just got to town. They'll work together. I'm not worried about it even a little bit.""