Manchester United could attempt to engineer a swap deal in order to sign Enzo Perez, according to recent speculation.
As reported by The Daily Star, the Red Devils - along with La Liga outfit Valencia - have not reacted obligingly to the player's £25 million release clause and instead new manager Louis van Gaal could attempt to get his man by including a current Manchester United player during negotiations.
Just who that player might potentially be could be a subject for intense debate, with several members of the current first-team squad at Old Trafford widely deemed to be under pressure this summer following a dismal showing in 2013/14 coupled with the arrival of the notoriously driven and unforgiving figure of Van Gaal.
28-year-old Perez appears to have emerged as a realistically attainable target for Manchester United in recent days, with the midfielder's chances of securing a necessary work permit having been handed a major boost by his inclusion in Alejandro Sabella's final 23-man Argentina squad for the upcoming World Cup.
A talented central midfield convert, Perez has impressed in his new role at the Estadio da Luz in recent years.
The Argentine - who joined Benfica from Primera División side Estudiantes back in 2011 - made 28 appearances last season as Jorge Jesus' side secured their first league triumph in four years, but also suffered disappointment as the Eagles were defeated in the Europa League final for the second consecutive season.
With Van Gaal expected to make several improvements to a squad that unquestionably underperformed under David Moyes, central midfield certainly appears to be an area in need of the Dutchman's immediate attention.
Perez could be deemed as somewhat of a risk given his lack of experience in European football outside of Portgual, though his presence at the World Cup in a formidably strong Argentina unit will surely go a long way to convincing understandably speculative Manchester United supporters that he would be a suitably impressive signing.
Indeed, Perez himself appears to be well aware of the interest from England and Spain and knows he will have plenty of options concerning his future after this summer's tournament.
"There are negotiations between other clubs and Benfica about me," he told Argentine television in an interview that was cited by talkSPORT.
"I know that Valencia and Manchester United are interested. There are serious possibilities to leave after the World Cup."