No. 1 pick Williams has toenails removed from big toes
Williams, a 6-foot-7, 292-pound defensive end, had the procedure done on Monday after struggling with infections because of problems with his toenails.
Houston has been going through organized team workouts for the past month and had their first day of minicamp on Wednesday.
"They were bothering him throughout the camp," said Texans coach Gary Kubiak. "So instead of trying to fight it, they removed them. We're giving him a few days off to make sure it heals properly."
Kubiak said Williams would probably return to practice on Friday.
"We just didn't want it to be a problem when we got to the summer so we took care of it now," Kubiak said.
Williams, who signed a six-year $54 million contract, with $26.5 guaranteed the night before the draft, spent practice intently watching all the drills Houston's other ends and tackles performed.
Copyright 2006 by The Associated Press
MORE NFL HEADLINES
- Sherman's two INTs help Seahawks by 49ers
- Niners CEO apologizes: Loss 'not acceptable'
- Eagles blast Cowboys, seize NFC East lead
- Dez awaits rematch vs. 'kinda cheap' Eagles