UPDATE: Deron Williams says he "might" need surgery on his inflamed left ankle following the 2012-13 season.

Brooklyn Nets point guard Deron Williams will sit at least two practice days after receiving an injection to temper inflammation in his left ankle.

From the New York Daily News:

The team announced he had been diagnosed with synovitis, an inflammation of the tissue lining in a joint — in this case his ankle. While this flared up after the Nets’ preseason loss to the Knicks Wednesday night, Johnson said Williams has been having minor nagging issues with both ankles since the offseason.

“(It has been) bothering him off and on, but he didn’t think much of it,” the coach said. “It was more in the offseason and, every now and then, it would act up on him, but we didn’t limit him in practice or anything.
“He’s just been icing it, and we had to send him to the doctor and check them out. He saw a little mild tendinitis in there, and hopefully this treatment program that he’s on will help him, and he’ll be ready to go in the next 24-48 hours.”

Read More: New York Daily News -- Brooklyn Nets coach Avery Johnson says Deron Williams has ankle tendinitis, will miss two practice days

The injury didn't keep Williams from smiling on Jimmy Fallon.