Liverpool have failed to make any real progress in talks with midfielder Jordan Henderson over a new contract, with the door now tentatively open for a potential exit from the club.The Reds have looked at their contract situation this summer and have already started working on some extensions. Goalkeeper Alisson will sign a new deal, as will Fabinho, and talks with Henderson have been raging for a few weeks now.Henderson has two years left to drive / Visionhaus / Getty ImagesDespite some early optimism, The Athletic notes…