Sheffield Wednesday gave their Sky Bet Championship survival fight a huge boost with a stunning 5-0 win against Cardiff, who have seen their play-off hopes fade.
Wednesday were the league's lowest scorers and had slipped to the bottom of the Championship table before kick-off, following Wycombe's win against Rotherham earlier in the day. But they responded in sensational fashion and completed their first league double over Cardiff since the 1983-84 season under Howard Wilkinson.
The tone was set inside five minutes when Julian Borner (4) headed home from a Barry Bannan corner. Former Cardiff striker Callum Paterson (20) then powered home a superb first-time volley, and a stunning Adam Reach (23) free-kick followed shortly after.
Cardiff saw a few brighter moments after half-time, but were again hit by a Wednesday quickfire double, both on the counter-attack. The first was tapped home by Jordan Rhodes (65), before Reach (69) started and finish the break for his second of the evening.
It sends Wednesday back above Wycombe into 23rd place, six points from safety after registering their first clean sheet in 11 games. They also end a run of four successive defeats at Hillsborough.
The result is a huge blow for Cardiff's play-off chances as they are now eight points from the top six, with Barnsley, Bournemouth and Reading all winning on Monday. They have also lost their first away game under Mick McCarthy, who has suffered his first loss away to Sheffield Wednesday.
Sheffield Wednesday made the perfect start as Bannan delivered an outswinging corner and Borner nipped ahead of Aden Flint to glance a header home after five minutes.
Wednesday continued to see the better of the play, and added another in the 20th minute. A sensational, floated pass from Josh Windass picked out Liam Palmer on the right flank. His control was not the best, but he steadied himself to cut the ball back for the waiting Paterson in the middle, with the former Cardiff striker producing a wonderful, first-time volley to fire past Dillon Phillips.
The third swiftly followed. Sheffield Wednesday won a free-kick just inside the 'D' and Bannan, the usual taker of such an opportunity, tapped the ball across for Windass, who stopped it dead for Reach. The midfielder then rifled a sweet strike into the top corner, easily beating the dive of Phillips.
Cardiff offered little by way of a reply in the first half, with Wednesday defending well at the back as well as impressing going forward.
Both sides had early sights of goal after the break. Joe Ralls whipped in a free-kick, but Flint could only direct his header wide. At the other end, Bannan struck from range, but Curtis Nelson was there to make a vital block.
Wednesday then hit Cardiff on two superb breaks in the space of four minutes. The first came after Wednesday had cleared the ball off the line, before Bannan led the charge down the field. He picked out Paterson on the right, who then squared the ball for the waiting Rhodes, who easily slotted home his fourth goal in five Championship games.
Reach then netted his second of the game, starting and finishing another counter-attack. He beat Tom Sang on the left before bursting down the field. He played the ball in for Windass, drove into the area to receive the pass back, and chipped the fifth past Phillips.
In between the two goals, Cardiff had a golden chance to pull one back, but Flint, Jonny Williams and Nelson all saw attempts blocked at close range. In the 85th minute, substitute Harry Wilson clipped an effort off the post to cap off a terrible Easter Monday for Cardiff.
Sheffield Wednesday: Wildsmith, Palmer, Börner, Lees, Urhoghide, Reach, Hutchinson (Pelupessy 82’), Bannan (Shaw 90’), Paterson, Windass (Kachunga 81’), Rhodes (Green 82’).
Subs not used: Westwood, Brennan, Hunt, Brown, Harris.
Cardiff City: Phillips, Sang, Flint, Nelson, Brown, Ralls, Vaulks, Pack, Bacuna (Ojo 72’), Williams (Wilson 72’), Moore (Watters 72’).
Subs not used: Smithies, Ng, Colwill, Hoilett, Harris.