Kilmarnock defender Manuel Pascali's appeal against his sending off in the defeat to St Johnstone has been rejected by the Scottish Football Association.
The Italian was dismissed after just five minutes of the 2-1 loss at Rugby Park last weekend for a foul on Saints striker Nigel Hasselbaink.
Pascali was given a straight red card by referee Stevie O'Reilly, but Kilmarnock felt he had made an error.
However, the SFA have rejected the club's claim of wrongful dismissal and hit Pascali with an immediate two-match suspension.
The 31-year-old will miss Saturday's Scottish Cup tie at home to Queen of the South, and the visit of Celtic the following weekend.
Kilmarnock manager Kenny Shiels was sent to the stands for arguing the decision and is now looking for answers over the SFA's disciplinary system.
He said: "The referee (Stevie O'Reilly) made a mistake. It was a blatant mistake. How they have come to this decision is quite unbelievable.
"We need answers. I want to see the report. I've lost a lot of faith in the system because the system isn't working."