The Portuguese club have yet to make a decision on whether to sell the 25-year-old, while the move has been complicated by Manchester City's pursuit of Eliaquim Mangala
By Duncan Castles
Manchester United have lodged a £12.3 million bid for Porto’s central defender Nicolas Otamendi, Goal has learned.
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An aggressive though not especially quick defender, Otamendi has been at Porto since 2010, playing a part in Andre Villas-Boas' famous treble-winning team in his first season at the club.
The 25-year-old has made 16 full international appearances for his country, but has fallen out of favour since Alejandro Sabella's arrival as Argentina coach.
Otamendi's potential recruitment forms part of David Moyes' plan to add five individuals at their peak of their playing careers to the club-record capture of Juan Mata.
United's new manager has sought to attribute blame for the club's debilitating season to the Premier League winning squad he inherited from Sir Alex Ferguson, and has been granted unprecedented financial backing to overhaul it.
United's bid for Otamendi has been complicated by Manchester City's attempt to recruit Mangala.
Convinced they can achieve their lofty asking price of around £45m, Porto have so far refused to negotiate a fee for Mangala, who they intend to retain for the season.
If City were to meet those demands, however, his sale would seriously damage Paulo Fonseca's attempt to retain the Portuguese title, and United's likelihood of signing Otamendi.