Celtic Park is abuzz with transfer talks as Atalanta's bid for Matt O'Riley was rejected, pending Kieran Tierney's record sale to Arsenal. Brendan Rodgers aims to retain key players like Reo Hatate amidst interest from Southampton and Russian clubs, with concerns over dealing with Russia due to the conflict in Ukraine. Hatate's desire to play in top European leagues adds complexity to potential moves. Meanwhile, Celtic faces challenges with academy player Daniel Kelly's future and prepares for high-profile pre-season matches in the USA, including against Manchester City and Chelsea.