Fulham are the latest to reportedly make an offer for a player who has registered five hat-tricks this season.
"It's not in my powers or in my thoughts for anything to happen in the future," he said.
"You guys can make up the stories or whatever they might be, rumours or whatever. They don't tend to affect my mindset.
"I can only affect what happens on the field and I've tried to block everything else out really and treat it all very much the same."