We've taken a look at the number of yellow and red cards Championship sides have had this season, as well as the total number of fouls (via WhoScored data), and awarded half a point for a foul, one for a yellow, three for a yellow/red and five for a straight red to calculate the 'dirty' rating. Here's a look at how Middlesbrough and their divisional rivals rank in the table.
1. Sheffield Wednesday - Dirty rating total score: 117.5
Fouls: 167. Yellow cards: 19. Yellow then Red cards: 0. Straight red cards: 3. Photo: David Rogers
2. Rotherham United - Dirty rating total score: 108
Fouls: 174. Yellow cards: 16. Yellow then Red cards: 0. Straight red cards: 1. Photo: Jan Kruger
3. Watford - Dirty rating total score: 99.5
Fouls: 163. Yellow cards: 18. Yellow then Red cards: 0. Straight red cards: 0. Photo: Richard Heathcote
4. Birmingham City - Dirty rating total score: 96.5
Fouls: 157. Yellow cards: 15. Yellow then Red cards: 1. Straight red cards: 0. Photo: Tom Dulat