Perennial Losers In Sports History

In the annals of defeat, the Pirates hold the dubious distinction of being the only franchise in North America's four major professional leagues to endure 19 consecutive losing seasons. Pittsburgh managed to climb seven games over .500 in late July and even spent a few tantalizing days atop the NL Central in 2011. Then the pitching staff slipped. Then went the bats, even with the addition of veterans Derrek Lee and Ryan Ludwick at the trade deadline. And on Sept. 14 the Pirates fell to 67-82 with a 3-2 loss to St. Louis, assuring the club of a 19th straight losing season.

Here are 17 other teams that have severely tested their fans' loyalty, patience and mental health.