In Brooklyn’s 105-85 blowout loss to the Miami Heat at Barclays Center, Williams had nine points, five assists and six turnovers.
“My energy was low and I had it in spurts,” said Williams, who was sweating profusely as he fielded questions from reporters in front of his locker after the game.
“It’s a lot worse now,” Williams said when asked about his illness.
The 28-year-old came in averaging 18.9 points and 8.5 assists on 45.7 percent shooting in January. But he was tentative from the start, and a non-factor for much of the night.
“This is a bad game. It definitely leaves a bad taste in our mouths when I have that kind of effort in the second half,” said Williams, who had just three points in the final two frames on 1-for-4 shooting.
Interim coach P.J. Carlesimo said he might have played his point guard too many minutes given how sick he was.
“It’s a bad loss,” Williams said. “We hoped to come out and put a better effort out with these guys and how close we are in the standings to them and a chance to gain a full game and just really try to prove that we can play with them, but we didn’t do that.”
• The Nets’ home winning streak was snapped at eight. It was the franchise’s longest since a nine-game stretch from Mar. 15, 2006, to April 6, 2006.
• The Nets finished out the month of January at 11-4, the same record they compiled in November.
• Carlesimo is 13-5 since taking over for Avery Johnson.
• The Nets have lost seven straight at home to Miami, dating back to Feb. 7, 2010.
• Brook Lopez (21 points, seven rebounds) finished with his team-leading 20th 20-point game of the season.
• Joe Johnson went just 4-for-15 from the field, but tied a season-high with six assists.
• Keith Bogans is 7-for-10 from 3-point range over his last two games.