Then on Wednesday evening, West Ham lost 2-1 to Manchester United at the Boleyn Ground in the FA Cup quarter-final replay.
Bilic has criticised the way his side defended in those two matches, and has also revealed that defender Winston Reid could be fit for Sunday afternoon’s Premier league game against leaders Leicester City away from home at the King Power Stadium.
“I am not happy with the way we have defended in the last couple of games - we should have done better in that department - but also we were playing against Arsenal and Manchester United, don’t forget that,” the West Ham boss wrote in The London Evening Standard.
“We have to remember what we did earlier in the season, we have to recall that work-rate which gave us so many wins. We can’t lose that.”
“We hope Winston Reid will be fit for Sunday,” added Bilic. “He had tight hamstrings after the Arsenal game and it was too much of a risk the other night but he should be okay for Leicester.”
West Ham are sixth in the Premier League table at the moment and still have a chance of finishing in the top four.
The Hammers need to pick up all three points against Leicester in order to maintain that dream, though.
Leicester are going strong in the Premier League and are favourites to win the league title this season.