Dead-eye Sanchezpublished at 20:04 Greenwich Mean Time 3 December 2016
West Ham 1-5 Arsenal
It's all in the eyes.
I'll leave you with this wonderful photo of Alexis Sanchez bamboozling Darren Randolph for his third goal.
Enjoy your evening - and don't forget you can watch Sanchez's sensational hat-trick on Match of the Day at 22:20 GMT on BBC One.