Brian Hoyer was named the team's starter over Mallett earlier in the week.
Mallett attended team meetings later in the day. Texans head coach Bill O'Brien did not provide a reason for Mallett's absence from practice, calling it a “personal issue” that was “between Ryan and I.”
O'Brien said that he expected Mallett to return to practice on Friday, according to The Houston Chronicle.
On Monday, the Texans announced that Brian Hoyer would be their starting quarterback. Mallett had been competing for the starting job.
Mallett, 27, played in three games and started two for Houston last season, his first with the team. He finished the year with two touchdowns, two interceptions and 400 passing yards.
- Stanley Kay