The Spanish international was booked for dissent by referee Jon Moss in the 22nd minute of the Blues' 1-0 win over Crystal Palace, while their midfield dynamo was cautioned in the second half.
Costa has been in formidable form for Chelsea this season and had scored 12 Premier League goals in 16 appearances before Saturday afternoon
His looping header brought his league tally for the season to 13, one more than he managed in the entirety of the previous season.

