Michail Antonio condemned Norwich City to relegation from the Premier League with all four goals in a 4-0 win for West Ham that significantly bolsters their survival hopes.
Bottom club Norwich needed all three points to have any hope of preserving their top-flight status but were undone by a superb individual performance from Antonio.
The 30-year-old opened the scoring with a back-post volley in the 11th minute and headed into the bottom-right corner in first-half stoppage time to give Norwich a mountain to climb.
Antonio nodded in on the rebound having been denied one on one by Tim Krul to complete his hat-trick nine minutes into the second half.
It was 4-0 in the 74th minute when Antonio flicked home at the near post on a miserable day for Norwich as their return back to the Championship was confirmed.