Houston Texans rookie running back Alfred Blue (44) runs for a gain during an NFL preseason football game against the San Francisco 49ers at NRG Stadium on Thursday August 28, 2014 in Houston, Texas. San Francisco won 40-13. (Aaron M. Sprecher/NFL)

Houston Texans rookie corner back Josh Victorian (27) celebrates after making a big hit during an NFL preseason football game against the San Francisco 49ers at NRG Stadium on Thursday August 28, 2014 in Houston, Texas. San Francisco won 40-13. (Aaron M. Sprecher/NFL)

Houston Texans rookie quarterback Tom Savage (3) throws the ball downfield during an NFL preseason football game against the San Francisco 49ers at NRG Stadium on Thursday August 28, 2014 in Houston, Texas. San Francisco won 40-13. (Aaron M. Sprecher/NFL)

Houston Texans football players come together in a huddle prior to an NFL preseason football game against the San Francisco 49ers at NRG Stadium on Thursday August 28, 2014 in Houston, Texas. San Francisco won 40-13. (Aaron M. Sprecher/NFL)

Houston Texans' Randy Bullock (4) kicks a field goal against the San Francisco 49ers during the second quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans' Case Keenum throws against the San Francisco 49ers during the first quarter of an NFL football preseason game, Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

San Francisco 49ers' Blaine Gabbert (2) talks with San Francisco 49ers head coach Jim Harbaugh during the first quarter of an NFL football preseason game against the Houston Texans, Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans' Jonathan Grimes (41) is pursued by San Francisco 49ers' Aaron Lynch (59) during the first quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

San Francisco 49ers' Blaine Gabbert (2) is caught behind the line of scrimmage by Houston Texans' Jason Ankrah (65) during the second quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans' Randy Bullock (4) is congratulated by teammate Shane Lechler (9) after he kicked a field goal against the San Francisco 49ers during the second quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

San Francisco 49ers' Blaine Gabbert (2) is caught behind the line of scrimmage by Houston Texans' Jason Ankrah (65) during the second quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

San Francisco 49ers' C.J. Spillman (27) and Shayne Skov (44) break up a pass intended for Houston Texans' DeVier Posey (11) during the second quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/Patric Schneider)

San Francisco 49ers' Bruce Ellington (3) celebrates with teammates after he scored a touchdown against the Houston Texans during the second quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

San Francisco 49ers' Kassim Osgood (14) makes a catch as he is hit by Houston Texans' Andre Hal (38) during the second quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

Houston Texans' Andre Hal (38) returns an interception for a touchdown against the San Francisco 49ers during the third quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

San Francisco 49ers' Glenn Winston (31) runs past Houston Texans' Jason Ankrah (65) during the third quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)