Due to engineering work the District Line is closed all weekend from Embankment west to Wimbledon. Richmond and Ealing Broadway via Victoria; also the Circle Line from Edgware Road to Tower Hill via Paddington and Victoria.
In general use other routes (bus or tube). From Wimbledon there are replacement buses to both Hammersmith and Earl's Court (separate routes) for other tube connections. These are NOT mentioned in the TfL Engineering work notice, but informed digging finds them.
No replacement buses are running from Richmond, except very early morning late night, and use the Central Line from Ealing Broadway.
The Piccadilly line is expected to be very busy on Saturday afternoon due to a Chelsea football match at Stamford Bridge, with heavy congestion at Earl's Court Station from 1930 to 2130.
West Brompton station on the London Overground Mildmay line will be exit only from 1930-2130 Saturday (District Line closed as above)- use Imperial Wharf station instead.