Keenum and Savage struggle as 49ers beat TexansGreenwich TimeSan Francisco 49ers' Chris Borland (50) runs an interception back for a touchdown past Houston Texans' Uzoma Nwachukwu (17) during the third quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. Photo: Patric Schneider, AP.and more »