The Argentine believes Manchester City can demonstrate their title credentials by claiming three points at Upton Park, where the Hammers are unbeaten in eight
Manchester City defender Nicolas Otamendi believes a win at West Ham on Saturday would be the type of victory that defines a champion.
Manuel Pellegrini's men go into the clash at Upton Park in third place in the Premier League, a point behind Arsenal and Leicester City, and will be out for revenge against a Hammers outfit which won 2-1 at the Etihad Stadium earlier in the campaign.