The former England Under-21 international is out of contract at the Riverside after rejecting a new deal.
Sunderland are also keen on signing Parnaby, according to The Sun.
Th 24-year-old have just made three starts for the Teessiders in 2007.
The former England Under-21 international is out of contract at the Riverside after rejecting a new deal.
Sunderland are also keen on signing Parnaby, according to The Sun.
Th 24-year-old have just made three starts for the Teessiders in 2007.
