Newcastle United sealed an instant return to the Premier League with a 4-1 victory over Preston North End on Monday night.
Rafael Benitez's team join Brighton & Hove Albion, who won promotion last week to become the 48th team to play in the competition next season.
Ayoze Perez gave Newcastle an early lead but they were pegged back by Preston's Jordan Hugill.
However, strikes by Christian Atsu, Matt Ritchie and another from Perez sealed the three points that started the party at St James' Park.
Five teams are vying to join Brighton and Newcastle via the play-offs: Reading, Huddersfield Town, Sheffield Wednesday, Fulham and Leeds United.