However, Martinez insists that the whole club are focused on the fight against relegation from the Premier League.
The Spaniard said: "I have got no time to think about that.
"Those stories are there - so be it - but I don't think we have to talk about them.
"With all these stories, as I've always said with players, if you get attention from other clubs it must be because we are doing something right."
Martinez rejected an offer to manage Aston Villa before the start of the current season.