{"document_url": "https://en.wikipedia.org/wiki/Jan_Karlsson_(wrestler)"}
Swedish wrestler
Jan Egon Karlsson (born 15 November 1945) is a retired Swedish wrestler, who often competed both in Greco-Roman and freestyle divisions at the same championships. In this way he won two medals each at the 1972 Olympic Games and 1973 World Senior Championships. He remains the last wrestler to win a medal in both styles in the same Olympic Games.