Manchester United are reported to be considering a bid in an attempt to secure the services of defender Ezequiel Garay from Benfica before this summer's transfer deadline.
David Moyes is contemplating a £15 million bid for the Argentinian amid growing concerns over the long-term fitness of Manchester United captain Nemanja Vidic, according to Metro.
Vidic has been ruled out of Manchester United's pre-season tour as he recuperates from a back injury, and Manchester United are now considering further reinforcing their back line.
The 31-year-old former Serbia international has endured a number of injury problems over the past few seasons and, with Rio Ferdinand only committed to another season at Old Trafford, defensive recruits may be a priority for Moyes following his arrival at the club.
Garay has seemingly been identified as a player with the ability to deputise for Manchester United's most experienced centre-backs, and has been linked with a switch to the Premier League champions for a number of months.
The 26-year-old is one of the most highly-regarded talents at Benfica, and Manchester United may be required to increase their initial bid of £15 million if they harbour any serious desire to claim his signature.
Garay made 42 appearances for Benfica in all competitions last season, although the campaign ended in disappointment as they lost out to Porto in the league and were beaten by Chelsea in the Europa League final.