Raiders watch Johnny Manziel’s workout, then sign another quarterback

The Raiders were one of 13 teams who had scouts watching fallen star Johnny Manziel’s workout in San Diego on Friday. A few hours later, Oakland decided it was time to sign a backup quarterback. But just like the 2014 NFL Draft, the Raiders again decided they could live without Johnny Football. Apparently not impressed enough by the new-look Manziel’s efforts, the Raiders instead are bringing back last year’s second-string quarterback, EJ Manuel. Not many expected Manuel, who beat out Connor Cook for the No. 2 role behind Derek Carr last season, to return to Oakland, especially with new coach Jon Gruden’s penchant for making changes. But when pen met paper Friday, Manuel became the Raiders’ NFL-leading