Matt O’Riley’s Celtic future is one that has been grabbing the majority of the headlines this summer as the midfielder attracts the attention of clubs in Europe’s top leagues. Atalanta were aggressively pursuing the Denmark international but after having five bids booted out by Celtic, the Serie A side have cooled their interest. Southampton were also reportedly looking to make a Scottish-record bid for Matt O’Riley in July but since then their interest has cooled. However, Brighton has emerged as the front-runner for the Celtic midfielder and has made a formal bid for O’Riley and now, their C…