straight to your inboxHard work is the key to Manchester City's newest defensive partnership, John Stones says.Stones has struck up a surprising partnership with summer signing Ruben Dias, establishing himself as first choice in Pep Guardiola's defence ahead of Aymeric Laporte, Nathan Ake and Fernandinho. The pair were superb in City's Carabao Cup semi-final win at Manchester United on Wednesday, with Stones scoring the first goal in a 2-0 win and Dias earning the Man of the Match award.