|Date of birth||December 3, 1995|
|Place of birth||Bozeman, Montana, United States|
|Height||5 ft 10 in (1.78 m)|
|* Senior club appearances and goals counted for the domestic league only and correct as of October 26, 2019|
Werner played four years of college soccer at Stanford University between 2014 and 2017, where he made 67 appearances, scoring 9 goals and tallying 9 assists. Werner missed the entirety of Stanford's 2014 season due to injury.
- "Sam Werner - Men's Soccer - Stanford University Athletics". gostanford.com. Retrieved 2019-03-13.
- "USA - S. Werner - Profile with news, career statistics and history". Soccerway. Retrieved 2019-03-13.
- "Sam Werner focista (Hapoel Hadera focicsapat játékosa)". focikatalogus.hu. Retrieved 2019-03-13.
- "Republic FC Sign Midfielder Sam Werner". sacrepublicfc.com. Retrieved 2019-03-13.