9 teams that have never been relegated from the Premier League

#2 Swansea City

In 2011, the 'Swans' became the first Welsh team to join the Premier League.

Playing in Premier League since - 2011-12

Worst League Position: 15th (2016-17)

Best League Position: 8th (2014-15)

League Positions since joining Premier League: 11th, 9th, 12th, 8th, 12th, 15th

The Swans gained promotion to the top flight via playoffs in 2011, and since then have always managed to be in the top 12. Until last season, when they slumped under the American, Bob Bradley, subsequently leading to his dismissal.

Their best finish came in the 2014-15 season where they finished 8th by completing a double (home and away victory) against giants Arsenal and Manchester United.