Leinart, the 2004 Heisman Trophy winner, signed with the Texans in September 2010 after he was cut by Arizona. The quarterback thanked Houston owner Bob McNair and the team on his Twitter account for giving him the opportunity to play.
"I will miss the Texans fans and most importantly my teammates," Leinart wrote. "I have no time to get down, focus is on getting healthy and being ready to go again!"
Leinart played in only two games for Houston. He finally got a chance to play after Matt Schaub broke his foot last season, but Leinart broke his left collarbone in the first half against Jacksonville on Nov. 27 and went on injured reserve.