West Ham must adjust to new manager David Moyes' tactics and work harder to get back to winning ways in the Premier League, according to midfielder Pedro Obiang.
The London side are 18th in the league, one point adrift of safety, with Moyes' first game in charge ending in a 2-0 defeat at Watford last weekend.
It marked West Ham's seventh loss in 12 games this season.
Speaking ahead of Friday's match against Leicester City, Obiang told the club's website: 'We have to work hard for the next game and forget about the last one because what happened, happened.