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.
21. 4th - Charlton Athletic
Average attendance at The Valley - 13,217 | Getty Images Photo: Getty Images
22. 3rd - Portsmouth
Average attendance at Fratton Park - 18,264 | Getty Images Photo: Getty Images
23. 2nd - Bolton Wanderers
Average attendance at the University of Bolton Stadium - 20,836 | Getty Images Photo: Getty Images
24. 1st - Derby County
Average attendance at Pride Park - 26,653 | Getty Images Photo: Getty Images