Houston Texans quarterback Matt Leinart throws a pass during the first half of an NFL preseason football game against the Minnesota Vikings Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Minnesota Vikings quarterback Christian Ponder breaks a tackle by Houston Texans defensive end Tim Bulman, left, during the first half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Charlie Neibergall)

Minnesota Vikings tight end Kyle Rudolph, left, celebrates with teammate Juaquin Iglesias after scoring a touchdown during the first half of an NFL preseason football game against the Houston Texans Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Houston Texans quarterback Matt Leinart is hit by Minnesota Vikings defensive end Stylez White, right, during the first half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Houston Texans running back Chris Ogbonnaya, right, is tackled by Minnesota Vikings safety Mistral Raymond during the first half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Minnesota Vikings running back Adrian Peterson looks on during the second half of an NFL preseason football game against the Houston Texans Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Minnesota Vikings running back Alexander Robinson (34) celebrates with teammates after scoring a touchdown during the second half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Minnesota Vikings quarterback Christian Ponder runs from Houston Texans linebacker Brooks Reed (58) during the first half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Minnesota Vikings cornerback Brandon Burton, right, intercepts a pass intended for Houston Texans wide receiver Derrick Townsel (14) during the second half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings wide receiver Emmanuel Arceneaux (16) catches a pass in front of Houston Texans cornerback Sherrick McManis, left, during the second half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings running back Caleb King runs from Houston Texans defensive end Tim Jamison (96) during a touchdown run in the second half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Minnesota Vikings running back Tristan Davis, left, tries to break a tackle by Houston Texans linebacker Brooks Reed (58) during the second half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Jim Mone)

Houston Texans quarterback Matt Leinart throws a pass during the first half of an NFL preseason football game against the Minnesota Vikings Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Houston Texans head coach Gary Kubiak, left, talks with Minnesota Vikings head coach Leslie Frazier after an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Minnesota Vikings quarterback Christian Ponder (7) tries to break a tackle by Houston Texans linebacker Brooks Reed (58) during the second half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Minnesota Vikings quarterback Donovan McNabb sits on the bench during the second half of an NFL preseason football game against the Houston Texans Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Houston Texans defensive end Tim Jamison, left, grabs the face mask of Minnesota Vikings quarterback Christian Ponder during the second half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Andy King)

Houston Texans quarterback T.J Yates (13) throws a pass as he is pressured by Minnesota Vikings' Adrian Awasom (67) during the second half of an NFL preseason football game Thursday, Sept. 1, 2011, in Minneapolis. (AP Photo/Jim Mone)