Barcelona coach Xavi admits Oriol Romeu could have a key role in today's clash with Real Madrid.
However, he insists every member of Barca's must be on their game.
"Oriol and all the pivots, midfielders, inside players and even wingers," he said. "They all have to be on their toes to help and stop Real Madrid's counter-attacks."
Meanwhile, Xavi is hopeful of Frenkie de Jong and Robert Lewandowski passing late fitness tests.
"If they are at 100% I'll definitely start them (Lewandowski and De Jong), there's no problem."
