Sevilla are upping their offer for Barcelona fullback Aleix Vidal.

Sport says Sevilla want Vidal on loan to the end of the season, but Barça will only accept if they include an obligatory option to buy for €8 million.

As things stand, that's the only thing holding up the completion of the operation.

Talks between the two clubs have advanced this week, although nothing is finalised. In fact, Vidal began Barça's game against Espanyol.

Sevilla have made it clear they're not in a position to make a permanent deal now but that in June they would be able to pay the fee demanded.