One of the most beloved Philadelphia Eagles in franchise history is calling it a career. After mulling it over for years, Jason Kelce is hanging up his cleats for good this time, announcing in a tearful Monday afternoon news conference that he's retiring. "Let's see how long this lasts," said Kelce, wearing a sleeveless Eagles T-shirt, before he burst into tears and needed several moments to compose himself at a news conference attended by his parents, Ed and Donna, and brother Travis, who was wearing sunglasses inside the auditorium.