straight to your inboxRoy Keane believes "the signs are good" for Manchester City's defence this season.Since shipping five goals at home to Leicester, Pep Guardiola's men conceded only three times in the next eight games in all competitions ahead of Sunday's Premier League showdown with Liverpool at the Etihad Stadium. Big-money summer signing Ruben Dias has slotted into the City team and formed a promising partnership with Aymeric Laporte at centre-back.