Former teammates, fans, and reporters covering the league reacted to Tyrann Mathieu's retirement on social media: 'He was must see TV for me'

The Saints are working to sign veteran safety Julian Blackmon, a source with knowledge of the situation confirmed. Blackmon, 26, must first pass a physical and is coming off a torn labrum that he dealt with last season. Blackmon suffered the injury in Week 1, but still managed to play 16 of 17 games.

Mathieu earned the "Honey Badger" nickname during his LSU years because of his fierce style of play in a relatively diminutive frame. Honey badgers are known for fearlessness and meanness, two characteristics Mathieu took with him onto the field.