Hull climbed to second in the Championship table after Stephen Quinn's second-half strike secured a 1-0 win over Burnley at Turf Moor.
One-time runaway leaders Cardiff have two games in hand and can double their advantage with victory over Leicester on Tuesday night, but Hull are now their closest rivals for the title after capitalising on Watford and Crystal Palace's weekend woes to go second.
Following a listless first-half largely devoid of goalmouth action, Quinn found space on the edge of penalty area and a calm finish in the 66th minute.
It was enough for City to end a run of seven consecutive defeats against Burnley, who came closest through substitute Sam Vokes when the game was goalless.
Quinn flashed a header wide for the visitors with 33 seconds played, while Burnley enjoyed encouragement of their own from Ross Wallace's eighth-minute corner - David Edgar's hooked shot blocked before Alex Kacaniklic smashed the loose ball narrowly past the angle of post and bar from 1...