Chargers sign RB Shaun Draughn

As expected, the Chargers have moved to bolster their running back depth. The club announced the signing of ex-Bears tailback Shaun Draughn on Tuesday. Draughn tried out for San Diego today before signing, a league source told PFT. Draughn, 26, played in the first two games of the season for Chicago, which waived him one…