Any form of discriminatory behaviour or chanting, including homophobic chanting, is unacceptable; it has no place in football and has serious criminal consequences. West Ham United will take the strongest possible action against any individual found to be engaging in such behaviour, including potential lifetime bans and referral to the police.

Beleaguered West Ham United boss Graham Potter continues his search for a first win of the season as his side travel to face Nuno Espirito Santo's Nottingham Forest. BBC Sport takes a look at some of the key themes as doubts surround the futures of both managers.