The Brazilian wing-back is eagerly anticipating Wednesday's cup encounter and has stressed that Valencia will prove a stern test
Marcelo has stressed that Real Madrid cannot afford to lose focus in Wednesday's Copa del Rey quarter-final against Valencia if they are to make it to the next round.
Bigger test will be who's waiting next after Valencia, either Malaga or Barca, if they get through either one, Real Madrid will win it all because Atletico Madrid will be in the final, and they'll most likely hand over the title.