David McGoldrick broke his Premier League duck with two goals as Sheffield United dented Champions League-chasing Chelsea with a 3-0 victory at Bramall Lane.
McGoldrick benefitted from static Chelsea defending to end his 25-game wait for a top-flight goal with a close-range rebound after a Kepa Arrizabalaga save on 18 minutes.
Oli McBurnie’s clinical header punished more poor Chelsea defending on 33 minutes before the Blades secured another huge victory in their bid for European qualification when McGoldrick completed his double 13 minutes from time.
Sheffield United climb to sixth in the Premier League after a fourth consecutive home victory, while a dismal outing for third-place Chelsea could be compounded by victories for Leicester and Manchester United that will see the Blues drop as low as fifth come Monday.
Sheff Utd: Henderson (7), Basham (7), Egan (8), O’Connell (7), Baldock (7), Berge (7), Norwood (7), Osborn (7), Stevens (8), McBurnie (8), McGoldrick (9).
Subs: Lundstram (6), Jagielka (6), Mousset (6).
Chelsea: Kepa (5), James (6), Christensen (5), Zouma (5), Azpilicueta (5), Jorginho (5), Mount (4), Barkley (5), Willian (5), Pulisic (4), Abraham (5).
Subs: Rudiger (4), Alonso (5), Loftus-Cheek (5), Giroud (6), Hudson-Odoi (5).
Man of the Match: David McGoldrick
Chelsea host relegated Norwich on Tuesday at 8.15pm, before Sheffield United travel to Leicester on Thursday at 6pm.