Real Madrid will visit Mestalla next Sunday to face Valencia in the Spanish league, amid fears that Casemiro will receive a warning and his absence from the "El Clasico" match against Barcelona on the 18th of this month.
The Brazilian player has four yellow cards, which means he will be absent from El Clásico if he participates against Valencia and gets a warning.
Real coach Zinedine Zidane had spoken about this situation before facing Espanyol in which the player was fully involved and said it was an "unsolvable" issue.
Casemiro has played four league rounds with this threat on his shoulders, as he received his fourth yellow card on November 2 in front of Real Betis.