Jack Mattsson

John Alfred Mattsson was an Irish international rugby union player.
Mattsson was a County Cork native and played for his rugby for Wanderers.
Although only capped once, Mattsson had the distinction of being part of Ireland's grand slam-winning 1948 Five Nations campaign. He came in at fullback for their second fixture, against England at Twickenham, deputising an unavailable Dudley Higgins. His performance was regarded as solid in a one-point win, with Ireland's Saturday Night highlighting his fielding and kicking, while also noting he'd been bettered by Dickie Guest in one of the England winger's two tries.