With figures gathered from Transfermarkt, here's a look at how both club's average home support over the last decade...
9. 2013/14 - Sheffield Wednesday
Division: Championship. Average home attendance: 21,239. (Photo by Robin Parker/Getty Images) Photo: Getty Images
10. 2013/14 - Sheffield United
Division: League One. Average home attendance: 17,505. (Photo by Harry Engels/Getty Images) Photo: Harry Engels
11. 2014/15 - Sheffield United
Division: League One. Average home attendance: 19,805. (Photo by Shaun Botterill/Getty Images) Photo: Shaun Botterill
12. 2014/15 - Sheffield Wednesday
Division: Championship. Average home attendance: 21,993. (Photo by Clive Brunskill/Getty Images) Photo: Clive Brunskill