Championship final day results: Blackburn Rovers relegated, Newcastle United champions after Brighton concede late goal
Blackburn became the first Premier League winners to be relegated to League One despite beating Brentford 3-1 on the final day of the Sky Bet Championship season.
Rovers were demoted on goal difference after Birmingham and Nottingham Forest both won.
Charlie Mulgrew and Danny Guthrie gave Blackburn the perfect start as they found themselves two up inside 16 minutes, but results elsewhere soon began to go against them.
Lasse Vibe pulled one back for Brentford in the second half, before Craig Conway's penalty restored Blackburn's two-goal lead.
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Che Adams grabbed Birmingham's winner 16 minutes in for a 1-0 victory at Bristol City as Harry Redknapp's side survived.
Forest thrashed Ipswich 3-0 on an eventful afternoon for Britt Assombalonga.
The striker scored a penalty two minutes before half-time before Chris Cohen fired in a second from distance after the break.
Assombalonga then had a second spot-kick saved by Bartosz Bialkowski, although he did complete his brace in the 69th minute.
Elsewhere Newcastle snatched the title after Aston Villa equalised late on against Brighton.
Rafael Benitez's side were 3-0 winners against Barnsley thanks to goals from Ayoze Perez, Chancel Mbemba and Dwight Gayle.
Glenn Murray's penalty looked to have sealed victory and top spot for the Seagulls, with Nathan Baker sent off conceding the spot-kick, but Jack Grealish grabbed a late leveller for Villa.
Leeds ended their season with a 1-1 draw at Wigan, coming from behind as Chris Wood netted from the spot for his 30th goal of the season.
Wolves finished in 15th after a 1-0 home victory over Preston, while Derby were held to a 1-1 draw at relegated Rotherham and Norwich beat QPR 4-0 at Carrow Road.
Reading, who won 4-2 at Burton, will face Fulham in the play-offs. The Cottagers won 2-1 at Sheffield Wednesday. The Owls will face Yorkshire rivals Huddersfield Town, who have lost successive matches after being beaten 3-0 at home to Cardiff.
Championship final day results in full
Brighton and Hove Albion 1-1 Aston Villa
Brentford 1-3 Blackburn Rovers
Bristol City 0-1 Birmingham City
Burton Albion 2-4 Reading
Huddersfield Town 0-3 Cardiff City
Newcastle United 3-0 Barnsley
Norwich City 4-0 Queens Park Rangers
Nottingham Forest 3-0 Ipswich Town
Rotherham United 1-1 Derby County
Sheffield Wednesday 1-2 Fulham
Wigan Athletic 1-1 Leeds United
Wolverhampton Wanderers 1-0 Preston North End