Herrera whose contract expires in the summer, has been free to talk with a foreign side since January 1st.
Midfielder marshal Ander Herrera is still in talks with Manchester United over a new deal despite strong interest from La Liga side Athletic Bilbao.
According to Sky Sports, the Spain international is keen to continue negotiations over a new contract at United.
Bilbao - were the 29-year-old was signed from back in the summer of 2014 - are interested in resigning Herrera who is thought to be enjoying life at Old Trafford under caretaker manager Ole Gunnar Solskjaer.
Since Herrera joined United from Bilbao, he has made 177 appearances for the Premier League giants, scoring a total of 19 goals.