Gareth Southgate's agent insists that he (Southgate) is not on his way to Newcastle United.
Steven Firth said, "It's all rubbish, total and utter rubbish. I really don't know where this is coming from.
"I went to the trouble of speaking to Newcastle on this and they've totally denied any interest.
"I also wrote to Middlesbrough to let them know Gareth is perfectly happy with life there.
"For some reason, people seem to believe all this talk, but I can assure them there is absolutely nothing in it."
While talking about defenders, Sir Bobby has confirmed that he would like Dabizas to stay at St James' Park.
He told the Sunday Sun, "We will be happy to keep Dabi if he will fight for his place.
"If (Stephen) Caldwell goes - and I don't know if he will - we want Dabi to stay. We need four centre-halves.
"He's still the equal of so many players here and I haven't forgotten him."
On Caldwell, Robson added: "He's been offered a contract and it's up to him.
"He now has to say yes or no."