West Ham United are monitoring Celtic's 22-year-old central midfielder, Arne Engels, following his performances during the club's Premiership-winning season. AC Milan has also been reported as having an interest, while Celtic rejected bids from Nottingham Forest in January, with the final offer reportedly reaching £25m. Engels joined Celtic from FC Augsburg in August 2024 for a fee of €11 million and has a contract until 2028.