Celtic are looking for a new goalkeeper in the transfer window to fill the void left by Joe Hart between the sticks. Undoubtedly, the former England international will be a hard man to replace following his retirement. Hart was a charismatic presence, a leader on and off the pitch and serial winner who claimed seven trophies during his time at Parkhead. Now, the focus has turned to his potential successor, with several names linked to the club, such as Bournemouth’s Mark Travers, Newcastle United veteran Martin Dubravka and Sparta Prague’s Peter Vindahl Jensen. While work is ongoing behind the…