After smacking into the court Wednesday, Williams lay there for a minute, then tried to get up and find his way to the bench.
"Randy [Foye] told me he was there and I started walking in the wrong direction," Williams said. "I was trying to get to the bench. I was just dizzy for a few minutes. I was in the back trying to walk around for a little bit and I finally sat down."
Williams, acquired from Atlanta in an offseason trade for Devin Harris, said he finally saw video of the play late this week, and said, "it did look pretty bad, but it felt pretty bad."
Doctors in New Orleans evaluated Williams late Thursday, he said, and he underwent more tests Friday morning in Oklahoma City. The Jazz have not said Williams has a concussion, but if that proves to be the case, he could be several days away from returning to the team.
The league policy mandates that a player with a concussion must be headache-free for two days before taking the mental and physical tests required for clearance.
"As long as I have a headache," Williams said. "They're going to let me take it easy. The headache has gotten better, but it is still there."
Jazz coach Tyrone Corbin didn't criticize Gregg Popovich for his decision. Nor did he directly question the NBA's $250,000 fine of the Spurs for their coach's decision to send four of his best players home in advance of the team's marquee matchup at the Miami Heat.
"It's [Popovich's] team," Corbin said. "San Antonio's been so successful, who am I to critique or criticize what they're doing there. We're trying to grow and get to where they are."
Last year, the Spurs left Tim Duncan, Tony Parker and Manu Ginobili at home for a road game in Utah.
"I don't know why [commissioner David Stern acted] now," Corbin said. "I thought [Popovich] did some of it last year, didn't he? I don't know what the huge difference is now."
In a statement released by the NBA, Stern said "the Spurs did a disservice to the league and our fans."
In what proved to be a competitive game Thursday night, Miami beat the short-handed Spurs 105-100.
However, the NBA cited a league policy reviewed with the NBA Board of Governors in April 2010 "against resting players in a manner contrary to the best interests on the NBA."
Corbin said he shared a philosophy with his predecessor, Jerry Sloan, who often said players owed it to fans to play.
"I think that's something you have to take into consideration," he said, "that those games people may have bought tickets to see certain players play."