Manchester City fans will welcome Ilkay Gundogan back to the club – but there may well be another addition before next Friday’s transfer deadline. City are expected to confirm the signing of Gundogan very soon, after a crazy past few days. The player’s future came into real doubt over the weekend, with reports suggesting Barcelona were ready to offload him after just one season. Fabrizio Romano has now reported Gundogan to City is as good as done, and the player was even spotted at the airport on Wednesday. But Pep Guardiola may not stop at Gundogan before next Friday’s deadline. Celtic forwar…