Follow Daily Mail Sport's live coverage for the latest updates from Arsenal's trip to Sunderland at the Stadium of Light in the Premier League.
Having been forced out of Tuesday's UEFA Champions League clash with Villarreal due to circulatory problems and subsequently missing Borussia Dortmund's 3-0 win over Paderborn on Matchday 3, Konstantinos Karetsas has been given the all clear to return to training.
City have had a flying start to the new season, securing dominant victories against Crystal Palace, Bournemouth and Coventry. United have had a sluggish start, with just four points in three games.
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