Angelo Ogbonna is looking for a response from West Ham after admitting the Hammers were “really sloppy” at Newcastle.
Slaven Bilic’s side arrived at St James’ Park on Saturday in fine form having won their previous four games, but the struggling hosts raced into a 2-0 half-time lead.
Nikica Jelavic pulled a goal back but the Magpies held on with West Ham dropping a place to sixth in the table.
Ogbonna admits West Ham’s first-half performance was unacceptable.
“We were not at our game in the first half,” he told the club’s official website.
“It was really sloppy from us. We needed to be much more powerful than that.
“Newcastle were good but we have to think of ourselves and we lost because we didn’t bring our game here.”