Romeu joined Los Che on a season-long loan in the summer but Valencia have already seen enough that they would like to make the move permanent.

Romeu has not been a permanent part of Valencia's first-team this season but Miroslav Djukic wanted to hold onto the player as he prepares for life without Ever Banega, who has been linked with Tottenham, Manchester United, Arsenal and Southampton.

The deal that sent the former Barcelona youth player to the Mestalla is not thought to contain an option to buy at the end of the season.