Career
Sak started his career with LSP Legion Lublin. At the age of 15 he moved to the best-known football academy in Poland, Managing Successful Programmes Szamotuły, where, for two-and-a-half years, his talent was nurtured by Andrzej Dawidziuk, the current head goalkeeping coach for the Poland national team At 16 years old Sak began to play regularly in senior teams.
In 2006 he joined Drawa Thule Krzyż Wielkopolski
After six months he was promoted to the Polish fourth division played for Sokół Pniewy until January 2008. He went on a one-week trial at Championship side Cardiff City and eventually signed for the club
On 19 February he was included in the first team for the first time when he was named as a substitute in the FAW Premier Cup semi-final against Newport County. At the start of the 2008-2009 season, Sak was named as the club"s third choice goalkeeper for the forthcoming season behind Tom Heaton and Peter Enckelman.
On 2 September 2008, Sak joined Dean Holdsworth"s Newport County on a one-month loan to cover for the injured Glyn Thompson, playing once in a 2–0 defeat to Havant & Waterlooville.
On 1 September 2009, Sak had his contract terminated. He subsequently joined Wrexham on non-contract terms. He has been nominated for Polish junior national teams.
He was called up in June 2007.
