Nearly two weeks after the NFL draft, the Dallas Cowboys are adding another dozen rookies to their roster. They announced agreements with 12 undrafted free agents expected to sign before rookie minicamp. Prominent signees include RB Nathaniel Peat, WR Cam Johnson, WR Corey Crooms, TE Brevyn Spann-Ford, TE Alec Holler, DE Byron Vaughns, and more.