Since he was cut by the Redskins on Sept. 3, Clemens has mostly been working out in his home state of Washington, waiting for an opportunity to re-enter the league.
“The offense, there’s some carryover,” said Clemens. “It’s been as easy a transition as it could be in one day. I’ve only been official for a few hours.”
Meanwhile, star receiver Andre Johnson and safety Danieal Manning were back for the team’s first full practice following the bye week after both missed several games with injuries.
Johnson has been out since hurting his right hamstring in the Texans' 17-10 win over Pittsburgh on Oct. 2, an injury that required minor surgery to repair. Manning has made a quicker-than-expected recovery after breaking his left fibula in Houston’s 41-7 win over Tennessee on Oct. 23.
Kubiak expects Johnson and Manning to both play in Jacksonville.
Schaub is the 10th Texans player to go on injured reserve this season, joining a group that includes outside linebacker Mario Williams (torn chest muscle) and linebacker Darryl Sharpton (dislocated shoulder).
Schaub’s durability was questioned after he missed games in the 2007 and `08 seasons with various injuries. But the quarterback started all 16 games for Houston in 2009 and 2010.
Clemens was a second-round pick by the New York Jets in the 2006 draft and backed up Chad Pennington. Clemens started only nine games for the Jets, eight in the 2007 season when the team finished 4-12.
He was eventually demoted to No. 3 on the depth chart after Rex Ryan became the coach, and the team drafted Mark Sanchez in 2009. Clemens became a free agent after the 2010 season, signed with Washington before training camp began.