Benfica centre-back Ezequiel Garay has admitted that he is in the dark regarding speculation that has linked him with a summer switch to Manchester United.

The Red Devils are said to be keen on the Argentine international as they seek a replacement for Rio Ferdinand, who will turn 35 later this year.

However, despite conceding that he has heard the reports, 26-year-old Garay has insisted that he will just try to continue to produce his best form for both club and country.

"There has been talk for a long time, but I know nothing about it," he told reporters. "I have to keep working and keep at the level I have been showing for Benfica and in the service of the national team of Argentina."

Garay joined his Portuguese employers from Real Madrid in 2011.