Borussia Dortmund are watching Valencia winger Ferran Torres.
Marca says Dortmund's directors were at Mestalla on Wednesday night to watch Valencia take on Sevilla, a game in which Ferran is a starter.
Dortmund have been tracking Ferran for a long time and they view him as the ideal replacement for Jadon Sancho, with there being a realisation at the club that they will be unable to hold on to the English winger for much longer.
Valencia, meanwhile, have the winger under contract until June 2021, so at the end of this season he will have just one year left on his deal.