LONDON: Brighton missed out on the chance to win English football's second-tier title after a shock loss to Bristol City on Saturday as Wigan were relegated from the Championship.
Both Brighton and Newcastle were already assured of playing in the Premier League next season after securing the two automatic promotion spots.
But the race between them for the title will go right to the last day of the regular season after Bristol City's Josh Brownhill scored the only goal of a game where the west country club secured their place in the division.
Brighton now lead Newcastle by just a single point.
Wigan were relegated after a 1-0 defeat at Reading while Blackburn improved their chances of staying up with a 1-0 win against Aston Villa.
Graham Barrow's Wigan -- in the Premier League just four years ago -- needed a victory and other results to go their way to avoid a quick return to League One, but they were unable to complete their part of the equation.
Reading striker Yann Kermorgant netted early on and Wigan striker Nick Powell squandered several chances to stop his team falling into the third tier one year after promotion.
While Wigan go down, third-placed Reading are looking up after securing their spot in the play-offs.
At Ewood Park, Danny Graham's goal was enough to take Blackburn's relegation fight to the final day of the season.
Having missed a sitter on the stroke of half time, Graham made up for it with a 54th minute finish.
A first home win in almost two months stretched third-bottom Blackburn's unbeaten run to five games and they are behind Nottingham Forest only on goal difference.
Forest were beaten 2-0 by QPR as Conor Washington and Joel Lynch scored early in the second half at Loftus Road.
Forest, who are at home to Ipswich next weekend, will go down if they fail to match Blackburn's result at Brentford.
Jonathan Grounds and Craig Gardner kept 10-man Birmingham's hopes alive with crucial goals in a 2-0 win over fifth placed Huddersfield at St Andrew's.
Caretaker manager Harry Redknapp saw Birmingham's Che Adams sent off in the first half, but Grounds' second goal of the season could not have come at a better time.
Birmingham secured only their third win in 24 league games when Gardner converted a penalty in the 75th minute.
Redknapp's side are two points above the relegation zone and their future will be decided on the last day of the season at Bristol City.
Leeds' play-off hopes were all but ended by a 3-3 draw with Norwich at Elland Road.
The hosts were three down after 44 minutes thanks to Steven Naismith's strike and Nelson Oliveira's double.
Chris Wood, Kyle Bartley and Pablo Hernandez all scored as Leeds hit back, but their vastly inferior goal difference means Fulham are certain to take the final play-off berth.
Fulham drew 1-1 at west London rivals Brentford, with Tom Cairney's opener for the visitors cancelled out by Nico Yennaris.
A year after losing in the play-off final against Hull, fourth-placed Sheffield Wednesday are back in the hunt for promotion after sealing their top six spot with a 1-0 win at Ipswich.