Bryant suffered the injury on Saturday during a meeting with the Sacramento Kings. The team said he will be re-evaluated over the weekend.
The Lakers have played six exhibition games this year and have lost them all. They will meet the Los Angeles Clippers on Wednesday and face the Kings again on Thursday.
Los Angeles will open the regular season on Oct. 30 with a home game against the Dallas Mavericks.
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Aaron Carter is still in love with Hilary Duff