Crystal Palace are reportedly eyeing a move to sign Celtic star Arne Engels in the summer transfer window, according to Sky Sports reporter Sacha Tavolieri. The Eagles will be looking to enjoy an impressive summer transfer window as they look to back new manager Pierre Sage, who joined the club earlier this month. Sage came in to replace Oliver Glasner, and he has some big shoes to fill, considering the Austrian manager won three trophies during his time at the club. Glasner decided to leave Selhurst Park at the end of his contract just days after they lifted the Europa Conference League title. Crystal Palace are hoping to convince Engels, described as 'outstanding' by former Celtic manager Brendan Rodgers, to join the club and beat Nottingham Forest to his signature. One of Crystal Palace's priority positions in the summer transfer window could be to bring in a new midfielder for Sage, with Adam Wharton heavily linked with a move away from Selhurst Park and Daichi Kamada out of contract. Palace also need to bring in players that are going to suit Sage's style, so it could be a busy summer transfer window for the Eagles. The club has confirmed they are in talks with Kamada over a new deal, but if both he and Wharton leave, they will be desperately in need of midfield reinforcements. Engels is a Belgian international, but he failed to make the World Cup squad for this summer, and a departure from Celtic is planned, according to reports from last month.