The Argentine centre-back has been in superb form this season for Portuguese side Sporting Lisbon and has gained interest from a number of top European clubs, including the likes of Barcelona, Real Madrid and Juventus. However, hot on the heels are a trio of English sides in Manchester United, Liverpool and most recently Arsenal. Gunners boss Arsene Wenger is in desperate need of some defensive improvements after a dip form that has seen them concede 24 goals since the beginning of February in all competitions. Rojo, 24, joined Sporting Lisbon in 2012 from Russian club Spartak Moscow and has two years remaining on his current deal in Portugal.