Southampton put their off-field dramas behind them to reach the FA Cup fifth round at the expense of Yeovil
Yeovil live updates
Late goals from Kazenga LuaLua and Jesse Lingard confirmed Yeovil's relegation from the Sky Bet Championship and fired Brighton back into the play-off places.
Substitute LuaLua struck with 11 minutes left and Lingard in stoppage time to secure a 2-0 win for the hosts and send Yeovil back to League One after one season.
Yeovil's Sky Bet Championship survival bid was left in tatters after Huddersfield snatched a late 2-1 win at Huish Park.
Nahki Wells had put the Terriers ahead before Tom Lawrence grabbed an equaliser but Adam Clayton lashed in a late winner for the visitors to leave the Glovers six points from safety and rooted to the bottom of the table with two matches remaining.
Yeovil now require an improbable set of results and a considerable swing in goal difference to maintain their second-tier status.
LOAN: Tom Lawrence has joined Championship outfit Yeovil Town on loan until the end of the season. http://t.co/h0IqdR5upJ
Paul Ince will be taking disciplinary action against the three Blackpool players sent off during a crazy finale at Huish Park on Tuesday evening.
With Yeovil seeing out a 1-0 win, earned thanks to John Lundstram's first Football League goal, the visitors' frustration boiled over in dramatic fashion with Kirk Broadfoot and Gary MacKenzie picking up second yellow cards either side of Ricardo Fuller's red for an attempted headbutt.
"They've let everyone down," Ince said. "They've let the fans down and the club down.
GOAL-Yeovil Town 3 (Ayling 105) Blues 2. Luke Ayling rifles home a thunderous strike off the underside of the bar. #bluesLIVE
GOAL - Incredible scenes! 2nd half of extra-time has started with Yeovil allowing Novak to dribble the ball into the net! 3-3. #bluesLIVE
We're sure you can't quite believe what you're reading,we can't believe what we're seeing here.Extraordinary night at Huish Park. #bluesLIVE
Swansea City centre-back Alan Tate has joined Championship newcomers Yeovil Town on loan until January.