McClaren is in his final year of his contract with the club but the Dutch outfit wants to tie him down long-term.
The former Middlesbrough boss signed a two-year deal with the club when he joined them in 2008.
McClaren is in his final year of his contract with the club but the Dutch outfit wants to tie him down long-term.
The former Middlesbrough boss signed a two-year deal with the club when he joined them in 2008.
