Nowitzki, who sat out Tuesday's loss to FC Barcelona Regal in Spain, is experiencing soreness and swelling in his knee for the second consecutive training camp. It bothered him several weeks into the season last year, something he wants to avoid happening again.
"We'll see how it responds," Nowitzki said, according to The Dallas Morning News. "But the longer we wait, obviously the worse it is. If we have to do something, it'd be better to do it quick.
"But we're still hopeful that this is a temporary thing. If we relax and rest it for a week and see how it goes, then we'll have a better idea."
If Nowitzki does have to undergo arthroscopic surgery next week, he might be able to return in time to play in the Mavericks' Oct. 30 season opener against the Lakers in Los Angeles.
Nowitzki, 34, said the pain and stiffness in the knee is similar to what he felt during last year's training camp.
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