Philadelphia 76ers restricted free agent Willie Green will miss six to nine months after undergoing successful surgery on his left knee Tuesday.

The 6-foot-2 guard was scheduled to sign a $20 million, six-year contract, but the restricted free agent injured his knee in a pickup game. While contract terms were reached, the deal was never signed.

''I have been in contact with Willie's agent and we are exploring options with Willie,'' team president Billy King said. ''There will be no immediate answer at this time.''

Agent Noah Croom said he was unsure when he'll talk about the contract with King.

''I'm sure that he has some concerns and issues. We'll figure it out,'' Croom said. ''There's no need to get into specifics. We'll have to figure out what our next step is.''