Atalanta has escalated its efforts to sign Celtic midfielder Matt O'Riley by submitting multiple bids, with the latest offer reaching €18m. Despite Celtic's insistence on a higher price tag of €25m, negotiations between the clubs are ongoing. O'Riley, who had a standout season with Celtic, is attracting interest from Liverpool and Southampton as well. The 23-year-old's potential move could impact Celtic's transfer plans, potentially funding a pursuit for Norwich striker Adam Idah. Atalanta's bid and the player's performance have sparked a competitive transfer scenario involving clubs from England and Europe.