With the transfer window fully open, the Celtic fans will be sitting and waiting to hear of any sign of news that the club are doing business. With links to players coming thick and fast, Brendan Rodgers has a bit of work ahead of him if he is to replace the likes of Joe Hart or finalise a deal to bring Adam Idah to the club. But as well as incomings, Celtic are also at threat of losing some of their best players as clubs from Europe circle the likes of Danish midfielder, Matt O’Riley. The Celtic hero has been heavily linked to Atletico Madrid for months now and after hearing the latest rumour…