Reports earlier this week claimed Rams boss Nigel Clough was ready to make a £200,000 bid for the Liverpudlian, but Coleman insists there has been no approach from the Championship side.
He said: "We've heard nothing from Derby, that's just speculation.
"But he's playing well, looking sharp and scoring goals so there are bound to be clubs looking at him.
"He has a bright future, as does Michael Symes (Grant's strike partner), who is still young enough to go and do well at a higher level."
Source: Team Talk
Source: Team Talk