The young midfielder knows his side have a battle on their hands...
The 21-year-old midfielder is wary of the threat the German outfit pose on the counterattack and of their physical presence and has warned that Barcelona must be on their guard.
"Their team will play a lot like they did in the first leg, pressing in midfield or further up field and when we make a mistake, hitting us on the counter," he is quoted as saying by AS.
"We should be wary of this. They have fast players and well be well organised. They are physically strong and Valencia showed that we can be killed on the counterattack so we must be careful.
"We're in the last 16 of Champions League, every game is going to be difficult."
The game is delicately poised at 1-1 from the first leg with a place in the quarter finals awaiting the winners.