The Chargers are wasting no time getting undrafted rookies. With the offseason roster expanded from 80 to 90 players, teams are adding more than they ever have before. The Chargers have reportedly brought in a total of 21 undrafted free agents. Check out the link at the bottom of the page for a full list of the signings. Most of these guys won't really make the team, but it will be interesting to see who does. Welcome to the NFL, your journey starts now.