Jesper Karlsson stated that the reason he chose to join Aberdeen on loan was manager Jimmy Thelin, with whom he had previously worked at Elfsborg. Karlsson also described Aberdeen as a great club and mentioned that he spent a few months there.

Jesper Karlsson's loan to Aberdeen from Bologna is being ended after approximately five months. The loan was originally intended to continue for a season.

An agreement was reached between Bologna and Aberdeen for the Scottish transfer of Jesper Karlsson, a 27-year-old Swedish winger. The player’s choice was reportedly driven by a desire to enhance his prospects for World Cup selection. The transaction was nearly called off just minutes before midnight because of time pressures, but the player's representatives worked since early morning to complete the deal. Their efforts paid off, with the contracts being submitted at 23:59, just one minute before the UK window shut. Other clubs, including Udinese and Sassuolo, were also reportedly interested in the player, who has a market valuation of €4.00m according to Transfermarkt.