"There are a lot of managers interested in my players but last season we had 15 or 16 teams watching us some weeks so we are used to it," Ferguson said after the 2-1 win against Roy Keane's strugglers.
"We will not sell any of our players unless it's a ridiculous bid so I am not concerned.
"I am backed by the chairman here and there is no chance of any of our best players leaving this month."