Mar. 20 9:58 AM PT10:58 AM MT11:58 AM CT12:58 PM ET16:58 GMT12:58 AM 北京时间9:58 AM MST11:58 AM EST10:58 AM CT20:58 UAE12:58 ET15:58 - The Cincinnati Bengals have signed quarterback Jason Campbell to be Andy Dalton's backup. Campbell has played for Washington, Oakland, Chicago and Cleveland. He started eight of the Browns' last nine games last season. Analysis: Campbell should be quite familiar with Cincinnati's offense, as he played for Hue Jackson when in Oakland. Jackson is Cincinnati's offensive coordinator.