The Madrid youngster has been on the cusp of the Spanish side for a number of years and has finally grown frustrated with life as a substitute.
Liverpool were hoping Callejon would be one of a number of people to arrive at Anfield this summer to improve their attacking options as it looks like main man Luis Suarez is certain to leave the club.
The 26 year old is set to cost Benitez and Napoli just £8million as they themselves look set to lose their key striker with Edinson Cavani looking likely to come to the Premier League with Manchester City and Chelsea set to battle it out for his signature.
Brendan Rodgers is still hoping that Liverpool will keep Suarez this summer and will have crunch talks with the Uruguayan in the next few weeks, however their main targets to replace him are slowly trickling away.
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