Middlesbrough's appeal against Adama Traore's three-game ban has been rejected by the Football Association.
The Spanish winger was sent off for a foul on Conor Hourihane just four minutes into Boro's 0-0 draw against his former club Aston Villa on Tuesday.
An FA independent regulatory commission turned down the club's appeal and upheld the original decision.
The 21-year-old will be suspended for the visit of QPR this weekend, as well as the Teessiders' next two fixtures.
However, Villa's Henri Lansbury - who was sent off later in the same Championship match - will not face a ban after the FA accepted their appeal.