By Jacob Leeks Portsmouth have been promoted to the Championship after 12 years in exile, with a thrilling win over Barnsley seeing them crowned champions of League One with two games to spare. There will be more to follow on this breaking news story and Mirror Sport will bring you the very latest updates, pictures and video as soon as possible. Please check back regularly for updates on this developing story. Follow us on Google News, Flipboard, Apple News, Twitter, Facebook or visit The Mirror homepage.