Celtic boss Neil Lennon insists it would take a massive job offer for him to leave the Scottish champions.
Lennon has already ruled himself out of the running to replace Paolo Di Canio at Sunderland earlier this week.
Speaking to Sky Sports News, he said: "Being linked with other jobs can be a little unsettling because there is no substance to it. But it is what it is... speculation.
"It doesn't detract from the focus I have on the job at Celtic but it is nice to be talked about when these jobs come up.
"However, it would take a heck of a lot to leave Celtic. There is a lot to give up here."