Boro manager Southgate had a £4million offer for the England Under-21 striker rejected in August.
Preston has valued their highly rated striker at £6 million.
Portsmouth manager Harry Redknapp has also been linked with Nugent.
Boro manager Southgate had a £4million offer for the England Under-21 striker rejected in August.
Preston has valued their highly rated striker at £6 million.
Portsmouth manager Harry Redknapp has also been linked with Nugent.
