Graham Potter believes his side "need to do better in the big moments" after West Ham concede three second-half goals to lose 3-0 to Sunderland at the Stadium of Light.
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Premier League - Sunderland 3-0 West Ham United
Related Topics: West Ham United, Sunderland AFC, Premier League, Graham Potter, Stadium of Light
Graham Potter believes his side "need to do better in the big moments" after West Ham concede three second-half goals to lose 3-0 to Sunderland at the Stadium of Light.
Available to UK users only.