Official lineups: Arsenal - Middlesbrough
Arsenal and Middlesbrough have published official formations to confront them in the Premier League.
Arsenal: Cech, Mustafi, Koscielny, Bellerin, Monreal, Elneny, Coquelin, Walcott, Ozil, Iwobi, Sanchez.
Middlesbrough: Valdes, Barragan, Ayala, Gibson, Friend, De Roon, Clayton, Traore, Forshaw, Ramirez, Negredo.