West Ham have been fined £30,000 by the Football Association after admitting to a whereabouts breach of anti-doping regulations.
The Hammers accepted a charge after three whereabouts violations in one year, saying the errors were administrative in nature.
There must be a daily time window when players are available for testing by anti-doping control officers.
A statement from the FA read: "West Ham United have been fined £30,000 after admitting a charge of failing to ensure that their club whereabouts information was accurate three times within 12 months, contrary to The FA's anti-doping regulations.