The USA international has revealed he would love to see his compatriot move to Merseyside, as rumours intensify over the midfielder's future
As Goal.com exclusively revealed on Monday, the 29-year-old has withdrawn from the Cottagers' pre-season training camp in Switzerland in order to force through a move.
And, with striker Andy Carroll seemingly closing in on an Anfield exit - with West Ham and Newcastle strongly rumoured as potential destinations - Johnson has backed Dempsey to seal a move.
Johnson posted on Twitter: "Andy Carroll on loan to west ham. Looks like its opening up space for my boy @clint_dempsey.
"Dempsey will be a great contribution to Liverpool. #topplayer"
Johnson also later insisted that he meant no disrespect to Fulham supporters with his tweets but reiterated his desire to see a fellow American at a "top" club.
He added: "Fulham is a fantastic club nothing towards the club at all. I read something and him being my mate would be happy if it happened.
"You people are taking this the wrong way. For any American to get the chance to play for a top club like that u wanna see it happen."