Williams warmed up before Tuesday's game, which the Nets lost 93-91, but was unable to play.
"It feels a lot better. It's like night and day," Williams said before the game. "If we weren't playing a back-to-back [the Nets play at Cleveland on Wednesday night], I may have given it a go. It still feels a little sore, but with a day off a little rest I should be back tomorrow."
Williams, a second-year guard out of Louisville, has been the Nets' most versatile player, according to head coach Avery Johnson, because of his ability to play multiple positions. He regularly gets minutes at shooting guard, small forward and sometimes, point guard.
The 6-foot-6 Williams is averaging 8.7 points, 4.8 rebounds and 3.8 assists in 24 minutes per game for the Nets (2-4).
Meanwhile, Cavaliers forward Antawn Jamison and guard Daniel Gibson were listed on the Cavaliers' 12-man roster. Jamison missed the last three games with a sore left knee, and Gibson missed practice Monday because of a family matter.
Cleveland coach Byron Scott said Gibson flew into Newark on Tuesday and rejoined the team.
Mike Mazzeo is a regular contributor to ESPNNewYork.com. Information from The Associated Press was used in this report.