"We can't look at him because he is not even Spurs' player," the Tigers boss told the Hull Daily Mail.
"Who do we talk to? Do we talk to Manchester United and who do Manchester United then talk to, do they then talk to Tottenham?
"There would have to be an agreement between those two clubs first before anything could happen. We are a third party in any deal.
"It just becomes a vicious circle. It is too complicated at the moment to even talk about Fraizer Campbell.
"Of course we would still be interested in Fraizer. He has always been on our radar, everyone knows that.
"Are we going to make a £7million move for Fraizer? Who knows, we might have moved past that and gone on to spending less money for more experienced players."