Grant Haley (American football)  Grant Haley (born January 6, 1996) is an American football cornerback for the New York Giants of the National Football League (NFL). He played college football at Penn State. Following the 2018 NFL Draft, Haley was signed by the New York Giants as an undrafted free agent. He was waived on September 1, 2018 and was signed to the practice squad the next day. On October 16, 2018, he was signed to the active roster. Haley ended the 2018 season ranked as the 4th best rookie cornerback ranked by Pro Football Focus.