Charlton Athletic and Leyton Orient supporters will have to be in fine voice this weekend to cheer on the London-based League One sides against two of the division's title chasers.
The Addicks welcome in-form Peterborough United to The Valley but will be buoyed by January transfer window activity while the Os take a journey to Fratton Park with league leaders Portsmouth waiting to welcome Richie Wellens' side. Followers of both clubs will be hoping for underdog victories as the two sides set their sights on climbing up the table and to the play-off places.
LondonWorld looks at how the Charlton and Leyton Orient home attendances this year compare with other clubs across the league - data from Tranfsermarkt.

1. 24th - Burton Albion
Average attendance at the Pirelli Stadium - 3,309 | Getty Images Photo: Getty Images

2. 23rd - Fleetwood Town
Average attendance at Highbury Stadium - 3,436 | Getty Images Photo: Getty Images

3. 22nd - Cheltenham Town
Average attendance at the Completely-Suzuki Stadium - 4,522 | Getty Images Photo: Getty Images

4. 21st - Stevenage
Average attendance at the Lamex Stadium - 4,812 | Getty Images Photo: Getty Images