Linebacker Zach Orr retired in January due to a congenital neck and spine condition that understandably scared the hell out of him. In his lone season as a starter with the Baltimore Ravens in 2016, Orr recorded 130 tackles, three interceptions, five passes defensed, and was named as a second-team All-Pro by the AP, so it was a considerable loss for the Ravens and the league.
Therefore the NFL is getting a significant talent boost this week, as Orr has announced that he intends to return after getting a new, better prognosis about his health and safety.