Goal.com reports that the Cottagers are furious with Reds boss Brendan Rodgers for publicly stating that the Merseyside club are hoping to lure the USA international to Anfield.
Rodgers previously stated: "Clint is a player we've enquired about, it is as simple as that.
"Ian Ayre, our managing director, has spoken with the club to see what the position is. That is where we're at. He's a very talented player but we don't like to talk about other clubs' players."