FA Cup fourth round: match previews

All the news and match previews for this weekend’s FA Cup fourth-round matchesIf Manchester City are to complete the quadruple they will have to get past a team whose form has been somewhat mixed in recent weeks. Cardiff are undefeated in four games having lost their previous four games, but with the canny Neil Warnock in charge and a raucous crowd behind them, they are sure to provide a test for Pep Guardiola’s side. In spite of that the Premier Leagues leaders, for whom Kyle Walker