Jesper Karlsson, born on 25 July 1998 (age 28), is a Swedish left winger with Servette, where he wears number 21. His current market value is around £3.5m, according to Transfermarkt.
The strongest season of his career so far came at AZ in 2021–22, when he scored 15 league goals in 34 appearances. That remains the obvious high point in his club record: a productive, direct spell rather than the sort of vague promise often attached to wide players.
By 2026–27 he is at Servette, with five Super League appearances to his name. Karlsson’s career reads as that of a capable Swedish wide forward who has had one notably productive league campaign and is now trying to build his place again in Switzerland.
