Manchester United are nervously looking over their shoulder in the Premier League after a night of late drama on England's south coast.
An Alexis McAllister penalty in the ninth minute of injury time saw Brighton beat United 1-nil at the AmEx stadium.
The win moves Brighton back into the top six.
While in the race for Champions League football, United have a four point advantage over fifth placed Liverpool, with a game-in-hand.
Napoli ended their 33 year wait between Scudetti last night.
Their 1-1 draw away to Udinese saw them secure the Serie A title with five games to spare.