Henrik Larsson: Former Celtic striker resigns as Helsingborgs boss please log in to view this image Former Celtic striker Henrik Larsson has left his role as Helsingborgs head coach following the five-time Swedish champions' relegation from the top flight. Helsingborgs' 23-year stay in Allsvenskan came to an end on Sunday when they lost 2-1 to Halmstads. Larsson's 19-year-old son Jordan, a striker for Helsingborgs, was assaulted by masked fans after the final whistle. Fans also attempted to confront Henrik Larsson, 45.