The Mavericks announced the signing of Lewis on July 19 after he agreed to a one-year contract paying the veteran's minimum. Lewis' agent Colin Bryant said it's uncertain how long Lewis will be sidelined. It's also uncertain if the Mavericks will try to void Lewis' contract. Lewis' knee injury was discovered during a physical for the Mavericks.
A Mavericks spokesperson declined comment.
"Rashard discovered he needs a medical procedure on his right knee to ensure he functions at a high level this season," Bryant said. "We look forward to [Lewis] getting this behind him as soon as possible so he can continue his stellar NBA career."
Lewis spent the past two seasons with the Miami Heat and won a NBA championship in 2013. He averaged 4.5 points and 1.8 rebounds in 16.2 minutes per game last season.
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