Jason Kidd says Deron Williams will NOT play tonight. #Nets— Tom Lorenzo (@TomLorenzo) January 6, 2014
Deron Williams is out tonight with an ankle sprain. There was an MRI but Kidd said he doesn't know the results.— Stefan Bondy (@NYDNInterNets) January 6, 2014
Jason Kidd says the Nets are being "cautious" keeping Deron Williams out. He'll be reevaluated tomorrow. Alan Anderson will start.— Andrew Keh (@andrewkeh) January 6, 2014
Kidd said Deron has been diagnosed with a sprained left ankle. He'll be reevaluated tomorrow. 3rd sprained L ankle for Williams in 2 months.— Andy Vasquez (@andy_vasquez) January 6, 2014
This will be the 12th game Williams has missed with sprained left ankle. He missed 6 of team's 7 preseason games w right ankle sprain.— Tim Bontemps (@TimBontemps) January 6, 2014
As noted, Alan Anderson will start in place of Williams. Again, Kidd said they are being "cautious" with Williams' ankles after it "swelled up" last night. Williams did say that he "wanted to play," but Kidd made it clear that the team did not want to risk it.
Update: Yes, the Nets have recalled Tyshawn Taylor from Springfield, after re-assigning him there earlier in the day.