Atletico Madrid have today been credited with an interest in Napoli forward Jose Callejon.
The 27-year-old moved from Real Madrid to Naples last summer and scored 20 times during his first season in Italian football.
According to AS, Callejon's form has been monitored by Atletico boss Diego Simeone, who is prepared to pay in the region of £15m to bring the Spaniard back to La Liga.
A number of European sides, including Chelsea and Arsenal, have also been linked with a move.