Lowest average for goals against a goalkeeper in a Major League Soccer career

Lowest average for goals against a goalkeeper in a Major League Soccer career
Who
Jimmy Nielsen
Where
United States
When
17 December 2013
As of 17 December 2013, the Major League Soccer (MLS) record for the lowest career goals-against-average (GAA) is 0.99 GAA by Jimmy Nielsen (Denmark), playing in 128 games and allowing 126 goals, between 2010 and 2013.