Update: Williams will opt out of the final year of his contract with the Mavericks, Dwain Price of the Fort Worth Star-Telegram reports.
Analysis: Williams, just like his teammate Chandler Parsons, is looking to take advantage of the increasing salary cap and seek a significant pay raise for the 2016-17 season. While Williams' age is definitely a factor going forward, the Mavericks may be reluctant to sign the former All-Star if his price gets too high.
Williams exited Saturday's Game 4 of Dallas' opening-round playoff series with Oklahoma City less than two minutes in after aggravating a left abdominal strain.
Williams had missed Thursday's 131-102 Game 3 loss to the Thunder with a sports hernia that also bothered him down the stretch of the regular season. There's a good chance he'll be out for the remaining games of this series.