Mike Flacco spent four years playing minor league baseball before making the decision to go back to college to try his hand at the sport that’s made his brother Joe a rich man.

The younger Flacco played one year at New Haven as a tight end, catching nine touchdowns and averaging nearly 20 yards per catch. That wasn’t enough to get him drafted, but his skills impressed the Chargers enough for them to make him one of the 17 undrafted free agents that the team signed after the draft came to an end.

Auburn cornerback Chris Davis is another notable member of the undrafted free agent class. Davis made the play of the year in college football when he returned a missed field goal 109 yards for a touchdown to beat Alabama as time expired in the 2013 Iron Bowl.

The Chargers also signed Portland State running back D.J. Adams, West Texas A&M wide receiver Torrence Allen, North Texas wide receiver Brelan Chancellor, Arizona State safety Alden Darby, Washington cornerback Greg Ducre, Oregon State wide receiver Micah Hatfield, Arkansas wide receiver Javontee Herndon, New Mexico guard D.J. Johnson, Utah defensive lineman Tenny Palepoi, Wofford linebacker Alvin Scioneaux, Nebraska tackle Jeremiah Sirles, Nevada punter Chase Tenpenny, Boise State defensive lineman Ricky Tjong-A-Tjoe, Illinois State linebacker Colton Underwood and Boston College tackle Ian White.