| Erwin Sak | |
| Fullname: | Erwin Sak |
| Birth Date: | 15 February 1990 |
| Birth Place: | Lublin, Poland |
| Position: | Goalkeeper |
| Youthyears1: | 2000–2005 |
| Youthyears2: | 2005–2008 |
| Youthclubs1: | LSP Legion Lublin |
| Youthclubs2: | MSP Szamotuły |
| Years1: | 2006 |
| Years2: | 2006–2008 |
| Years3: | 2008–2009 |
| Years4: | 2008 |
| Years5: | 2009 |
| Years6: | 2010 |
| Years7: | 2011–2012 |
| Years8: | 2013 |
| Years9: | 2013 |
| Years10: | 2014–2015 |
| Years11: | 2016 |
| Years12: | 2018 |
| Clubs1: | Drawa Thule Krzyż Wlkp. |
| Clubs4: | → Newport County (loan) |
| Clubs6: | Bug Wyszków |
| Clubs8: | Nadnarwianka Pułtusk |
| Clubs9: | Świt Nowy Dwór Mazowiecki |
| Clubs10: | Mazur Karczew |
| Clubs11: | Mazur Karczew |
| Clubs12: | LZS Stara Kamienica |
| Caps1: | 17 |
| Caps2: | 45 |
| Caps3: | 0 |
| Caps4: | 1 |
| Caps5: | 0 |
| Caps6: | 15 |
| Caps7: | 3 |
| Caps9: | 10 |
| Goals1: | 0 |
| Goals2: | 0 |
| Goals3: | 0 |
| Goals4: | 0 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 0 |
| Goals9: | 0 |
Erwin Sak (born 15 February 1990) is a Polish former professional footballer who played as a goalkeeper.
Sak started his career with LSP Legion Lublin. At the age of 15, he moved to the best-known football academy in Poland, MSP Szamotuły, where, for two-and-a-half years, his talent was nurtured by Andrzej Dawidziuk, the former 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 Wlkp. After six months, he joined III liga club Sokół Pniewy until January 2008. He went on a one-week trial at Championship side Cardiff City and eventually signed for the club.[1] 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 2008–09 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,[2] playing once in a 2–0 defeat to Havant & Waterlooville. On 16 February 2009, Sak was named as a substitute in the fourth round of the FA Cup replay against Arsenal.[3]
On 1 September 2009, Sak had his contract terminated. He subsequently joined Wrexham on non-contract terms.[4]
He has been nominated for Polish junior national teams. He was called up in June 2007.[5]