UNAM Pumas defender Efrain Juarez is a £6 million target for West Ham United.
The Sun says the 22-year-old, who can play in central midfield and at right-back, is keen on a switch to the Premier League.
West Ham officials are trying to keep the move under wraps, but boss Avram Grant is keen to wrap up a deal quickly.
Now the Hammers are hoping to finalise the switch in the next few weeks following Mexico's exit from the World Cup.