While Cardiff displayed their united front, West Ham found their dressing-room harmony questioned after striker Andy Carroll was left out of the squad again.
Manuel Pellegrini attempted to quash rumours that the £90,000-a-week striker had gone Awol, instead saying he had an ankle issue.
Goalkeeper Fabianski admitted West Ham had relaxed without the threat of relegation. But he challenged his team-mates not to slip into mid-table obscurity when a faint hope of European football was still alive.
“Maybe being in the comfort zone, being in a good position, being safe, relaxes you a bit,” he said. “But then again, the manager is very demanding. He wants us to keep pushing. We have to listen to him and react to his words and to his expectations every single day.”