Sterling was banned for life after his racially charged remarks, and Silver announced Tuesday that he would ask the other league owners to remove him as an owner.
The NBA constitution requires three-fourths of the league's 30 owners to vote to strip Sterling of his ownership, Sterling said.
"I didn't poll the owners. I spoke to several owners and I have their full support," Silver said Tuesday at the news conference announcing the sanctions.
Asked again later, Silver added: "I fully expect to get the support I need from the other NBA owners to remove him."