Kobe Bryant sat out practice on Sunday, the sixth day he has missed due to a strained and bruised right foot.
Bryant is expected to play in Tuesday's regular season opener, but Pau Gasol is unconvinced.
"I have my doubts," Gasol said. "... He hasn't been able to practice for six days. He's been off that foot for six days and it's no joke. I don't remember the last time that he took that many days off exercising.
"He might do stuff in the weight room and might do stuff without putting weight on the foot, but it's a little bit concerning."
Bryant underwent an MRI over the weekend.
"We'll see how he is tomorrow and what he cannot do or can do out on the floor and then kind of go from there," Mike Brown said. "He's definitely making progress."