Aston Villa supporters travelling to Wembley by train have been collectively issued with travel advice from rail operators.
Villa are set to play Crystal Palace in the FA Cup semi-final, which kicks off at 17:15 BST on Saturday.
Passengers were advised that train travel on the day was expected to be "very busy" with "limited rail services in operation" from London to Birmingham post-match, Chiltern Railways said.
Rail operators in the region have also reminded customers to check their journeys and to plan ahead and purchase tickets in advance of travelling.
Chiltern Railways will operate direct services from Warwick Parkway to Wembley Stadium on the day, with Avanti West Coast and London Northwestern Railway operating services from Birmingham New Street to London Euston.