West Ham beat Liverpool 2-0 at Upton Park to record their first double victory in a single league season over the Reds for the first time since 1964.
Slaven Bilic was appointed Hammers boss over the summer after parting ways with Istanbul giants Beşiktaş.
Bilic has a history of pulling off impressive results against Liverpool. The Black Eagles knocked Liverpool out of the Europa League Round of 32 last season on penalty shoot-outs at the Atatürk Olympic stadium.
The Reds were also favourites going into the Europa League tie last season as they were against West Ham.
“I will never forget Liverpool we were fantastic and faced a top team who were favourites,” Bilic told Fanatik.
Beşiktaş were eventually knocked out by Belgium giants Club Brugge in the quarter-final stages of the competition.
Bilic has continued his tradition of being a ‘giant killer’ this season beating Liverpool twice as well as Chelsea, Arsenal and Manchester City.
West Ham take on Wolves next in the FA Cup followed by Bournemouth in the Premier League.