Chelsea goalkeeper Thibaut Courtois will miss the Premier League fixture against Manchester City on 16 August after the FA rejected the club's appeal against the red card the Belgium international received in the 2-2 draw with Swansea City.
Courtois was sent off on 52 minutes after he brought down Bafetimbi Gomis in the area, with the Swansea striker scoring the equaliser from the penalty spot to earn his side a point in the Premier League opener at Stamford Bridge.
However, the FA has now claimed that following an Independent Regulatory Commission hearing earlier on 11 August, it has decided not to remove Courtois's ban as there is no evidence the referee "made an obvious error".
"A claim of wrongful dismissal submitted by Chelsea in relation to Thibaut Courtois has been unsuccessful following an Independent Regulatory Commission hearing earlier today," the FA confirmed in an official statement.
"The goalkeeper was dismissed for denying an obvious goal-scoring opportunity in the 52nd minute of Chelsea's game against Swansea City at Stamford Bridge on Saturday (8 August 2015).
"Therefore, the player's one-match suspension, which is the standard penalty for this offence, remains with immediate effect. For a club to be successful with a claim of wrongful dismissal, it must prove to an Independent Regulatory Commission via written and/or video evidence that the match referee made an obvious error."
With Courtois missing the game against last season's runners-up, summer signing Asmir Begovic is expected to play in goal.