David Eulitt/Getty Images
Philip Rivers is on the verge of playing for just the second franchise in his 16-year career. Or he may be done playing altogether.
It's tough to fully know what the open market for the longtime Charger will look like until Patriots quarterback Tom Brady signs his next contract—which is the same that could be said for any free-agent quarterback in 2020. The difference for Rivers is he may end up retiring depending on how much interest teams have in his services.
According to NFL Network's Ian Rapoport, it's not a guarantee the 38-year-old will play next season.