Barcelona face starting next season with Keirrison on the books.
Barca are in advanced talks with Palmeiras over a deal for the young Brazilian, with the intention of sending him to Valencia as part of an offer for David Villa.
However, AS says Valencia aren't interested in taking Keirrison in part-exchange and are unhappy with Barca's behaviour over their pursuit of Villa.
Valencia coach Unai Emery insists Keirrison is nowhere near the level of Villa and the club's £40 million asking price must stand.