Both Gert Bo Jacobsen and Greg Haugen were professionals at what sport?
Gert Bo Jacobsen Gert Bo Jacobsen (born 1961-12-28) is a former WBO welterweight title holder. He is from Oestrup, Denmark. His first 26 fights he was undefeated from 1983 to 1988. His first lost came in October 1988 to Greg Haugen.
Royal Belgian Athletics League The Royal Belgian Athletics League (Dutch: Koninklijke Belgische Atletiekbond, French: "Ligue Royale Belge d'Athlétisme") is the governing body for the sport of athletics in Belgium.