Chelsea Games Refereed by Karl Keller
List of all competitive Chelsea matches refereed by Karl Keller (Switzerland)
| Comp | Date | Home | Away | Chelsea Cards | Opposition Cards | |||
| Europe | 27th Apr 1966 | Barcelona | 2 | 0 | Chelsea |  |
In matches refereed by Karl Keller, Chelsea have the following record:
| Played | Won | Drawn | Lost | |
| Home | 0 | 0 | 0 | 0 |
| Away | 1 | 0 | 0 | 1 |
| Total | 1 | 0 | 0 | 1 |
In matches refereed by Karl Keller, the referee issued the following number of cards:
0 Chelsea & 0 opposition
0 Chelsea & 0 opposition
