Bartosz Piotr Grzelak (born 2 November 1978) is a Swedish football manager. He is also a former footballer who played as a midfielder. Playing career. Grzelak made his sole Allsvenskan appearance for AIK on 26 October 1997 in a 1997 Allsvenskan game against Malmö FF when he replaced Johan Mjällby in the last couple of minutes of the game. He was also a Sweden U19 international, appearing in seven games in 1996. Managerial career. In 2009 Grzelak became playing assistant manager for IK Frej. He became head coach for the club in 2012.
https://en.wikipedia.org/wiki/Bartosz_Grzelak