Matthews, who was pitching to Packers offensive lineman Lucas Patrick in the Green & Gold Charity Softball Game, was slow to react to the ball, which Patrick hit directly back to him. As seen in the above video, Matthews didn't have time to deflect the ball, which appeared to strike him in the nose.
A source told NFL Network Insider Ian Rapoport that, following Matthews' trip to the emergency room, the linebacker was confirmed to have suffered a broken nose. Packers coach Mike McCarthy told reporters Monday that Matthews will undergo surgery this week and that he didn't have any long-term concerns about the linebacker's health.
Matthews said in a tweet that he will have surgery on his "busted" nose after the swelling goes down.
Matthews is entering his 10th season with the Packers and has missed only six regular-season games over the past four seasons. The veteran linebacker is the final season of a five-year deal in Green Bay.