The image below is taken from the Spanish journalists Twitter account and states the Merseyside outfit have made a bid (see translation below the image for the full text).
Google Translate offered this as a translation of the tweet: Liverpool have made an offer of €19.7m for Jose Callejon del Madrid. The club would be willing to sell it. In Alley would like to go.
With Mourinho said to be looking to add to his striking options and having only two other recognised forwards (Karim Benzema and Gonzalo Higuain), Callejón may find it hard to gain a starting spot next season. With Liverpool struggling to find the back of the net the move for Callejón could certainly benefit both clubs come the new season.