Barcelona have offered Isco a massive signing bonus to quit Real Madrid.

The Real midfielder, reports El Chiringuito, has held talks with Barca, along with his father.

Barca have offered Isco a five-year contract plus a staggering €20 million signing on bonus.

However, sources say "it will be a very difficult signing".

For their part, news of Barca's offer has been greeted by disbelief inside Real, though they accept Isco wants to leave this summer.