| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| Babak Rafati | 6 | 3 | - | - | 2 |
| Manuel Grafe | 10 | 3 | - | - | 3.33 |
| Carlos Del Cerro Grande | 2 | 2 | - | - | 1 |
| Guido Winkmann | 2 | 2 | - | - | 1 |
| Howard Webb | 3 | 2 | - | - | 1.5 |
| Michael Weiner | 5 | 2 | - | - | 2.5 |
| Wolfgang Stark | 11 | 2 | - | - | 5.5 |
| Oscar Julian Ruiz | 1 | 1 | - | - | 1 |
| Jan Wegereef | 1 | 1 | - | - | 1 |
| Kyros Vassaras | 1 | 1 | - | - | 1 |
| Jose Luis Gonzalez Gonzalez | 1 | 1 | - | - | 1 |
| Ignacio Villanueva | 2 | 1 | - | - | 2 |
| Claus Bo Larsen | 2 | 1 | - | - | 2 |
| Mike Dean | 2 | 1 | - | - | 2 |
| Cuneyt Cakir | 3 | 1 | - | - | 3 |
| Peter Sippel | 3 | 1 | - | - | 3 |
| Michael Kempter | 4 | 1 | - | - | 4 |
| Alberto Undiano Mallenco | 4 | 1 | - | - | 4 |
| Knut Kircher | 5 | 1 | - | - | 5 |
| Deniz Aytekin | 6 | 1 | - | - | 6 |
| Herbert Fandel | 7 | 1 | - | - | 7 |
| Florian Meyer | 9 | 1 | - | - | 9 |
| Thorsten Kinhofer | 12 | 0 | 1 | - | 12 |
P = Matches played,
C = Cards .