Slaven Bilic issued an ominous warning that West Ham United have “lost their intensity in training” after another dismal performance at the London Stadium on Saturday.

West Ham were beaten 5-1 by Arsenal, leaving them 17th in the Premier League table, and Bilic admitted that his team have had no intensity since the start of the season. Issuing the harshest critique yet of failing players, Bilic said that it was his responsibility, but that the players had to wake up to how serious their situation was.

“I am very disappointed, a bit frustrated and humiliated,” Bilic said, during an emotional press conference at the London Stadium. “I feel responsible for this. Somewhere down the line, from pre-season, we have lost the intensity in training. We only do it occasionally. That is why we can’t do it for 90 minutes in a game. Intensity and dedication to the cause is missing.”

Bilic said that the most important thing, as he tries to save West Ham’s season, was to rediscover that edge in training. “We are not the first to lose it, or the last to lose it,” he said. “It is there, in us, starting with me. The players don’t have to take responsibility, I take responsibility. The manager is there to take it. We can talk now for ages, but this is 100 per cent right. We did not forget how to play football, we didn’t forget how to be creative. But somewhere, somehow, down the line, we lost that.”

West Ham vs Arsenal player ratings Show all 22 1 /22 West Ham vs Arsenal player ratings West Ham vs Arsenal player ratings Lukasz Fabianski - 7 LONDON, ENGLAND - JANUARY 12: Alexandre Lacazette of Arsenal collides with Lukasz Fabianski of West Ham United during the Premier League match between West Ham United and Arsenal FC at London Stadium on January 12, 2019 in London, United Kingdom. (Photo by Marc Atkins/Getty Images) Marc Atkins Getty Images West Ham vs Arsenal player ratings Pablo Zabaleta - 7 Soccer Football - Premier League - West Ham United v Arsenal - London Stadium, London, Britain - January 12, 2019 West Ham's Pablo Zabaleta in action with Arsenal's Sead Kolasinac REUTERS/David Klein EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. 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As bad as things are looking, Bilic was still confident that he could solve West Ham’s crisis. “I am very optimistic, positive and I never give up,” he said. “I can turn this around.”

Wenger was delighted with his side's rout of their faltering opponents (Getty)

Arsene Wenger said that his only regret about the game was that Arsenal did not score more goals in the first half. The scoreline was still 1-0 with 20 minutes remaining, before Alexis Sanchez’s hat-trick turned the game into a rout.

“Overall it was a strong team performance over 90 minutes with very few weaker periods,” he said. “I have only one regret, that we didn’t take our first half chances. We were a bit short at 1-0 up at half-time. I know how it plays on our mind, we could pay for that. But we kept the pressure on and finished in a very strong way.”