The transfer speculation surrounding Celtic hero, Matt O’Riley, has ramped up this week after Atalanta joined the long list of suitors for the classy midfielder. The Europa League winners are looking to bolster their squad for next season’s assault on the Champions League and put forward a £15m transfer proposal on Thursday. Celtic rejected the bid as it falls way short of how they value their star player but there is no doubt that Atalanta will look to pursue this move and that is something I’ll get to later. It’s what’s happening at Atletico Madrid this weekend that caught my eye as the La L…