Florian Plettenberg stated that there are clubs from La Liga interested in Arne Engels.

A discussion took place on the Open Goal panel regarding the potential sale of Arne Engels for £20 million in the summer, following Celtic having resisted significant interest and offers from Nottingham Forest in the winter. The panel unanimously agreed they would sell Engels over Benjamin Nygren for that amount. It is stated that Celtic have to sell if any significant fee is offered for Arne Engels in the summer.

Owen Hargreaves asserts that Celtic have Scottish football's first £40million footballer in their ranks in Arne Engels. The Belgian playmaker arrived for a record £11m fee this summer from Augsburg. Hargreaves believes the Scottish champions have conducted their business in the right way. He suggests that Brendan Rodgers knows how to develop players and that if the boss can work his magic with Engels, it could earn them another record amount in the future. Hargreaves noted that if Engels manages to flourish at Celtic, the natural progression would be a big move, similar to what happened with Virgil van Dijk.