Liverpool goalkeeper Alexander Doni's appeal for wrongful dismissal has been rejected by the Football Association.
Doni was handed a red card during Liverpool's 3-2 win over Blackburn at Ewood Park on Tuesday night.
The Brazilian was sent off for bringing down Junior Hoilett as he raced through on goal midway through the first half with the Reds leading 2-0.
Referee Anthony Taylor awarded a penalty to Rovers for the infringement only for substitute goalkeeper Brad Jones to save Yakubu's spot-kick.
With No.1 keeper Pepe Reina already serving a suspension, Doni's dismissal left Liverpool boss Kenny Dalglish with a real goalkeeping problem on his hands ahead of this weekend's FA Cup semi-final with Everton.
Liverpool had hoped to have the red card overturned so that Doni could be available to face Everton, but a regulatory comission rejected the appeal and the former Roma man will now serve a one-game ban.
It means Jones will now start in goal at Wembley with Peter Gulacsi recalled from his loan spell at Hull City to provide cover.