Raul Jimenez scored a 90th-minute winner for Wolverhampton Wanderers against Sheffield United at Bramall Lane.
Mexico international Jimenez came off the bench and popped up at the back post to secure all three points for the visitors, in a tight encounter with little to separate the two sides.
It secured Wolves' first Championship victory in three games, while Sheffield United's early-season inconsistency continues to stunt their progress.
In a quiet first half in terms of clear-cut openings, the major opportunities came for Wolves, the first of which arrived a quarter of an hour in.
Adam Armstrong collected the ball on the left of the penalty area and delivered a low cross which Marshall Munetsi deflected into the path of teammate Fer Lopez, but his goal-bound effort ricocheted wide via the leg of Liam Kitching.
Moments later, Jackson Tchatchoua and Rodrigo Gomes combined to good effect on the right-hand side for Wolves, and the latter pulled the ball back into the path of Munetsi, but he shot straight at goalkeeper Michael Cooper.
Sheffield United replied at the beginning of the second half with a chance of their own, but Sydie Peck, having been teed up by Sam McCallum, failed to truly test keeper Jose Sa.
Wolves had a strong shout for a penalty waved away when Matheus Mane attempted to lift the ball over Mark McGuinness and the ball struck the Blades defender's arm.
Jordan Ayew, on his Sheffield United debut, did provide Wolves with cause for concern when, shortly after being introduced from the bench, he flashed a low drive beyond Sa's far post as the hosts began to pose more questions.
However, then Jimenez, Wolves' record goalscorer in the Premier League, who returned to the club in the summer, turned Tommy Doyle's sliced strike into the net from close range after Kieran Trippier's pull-back.
Both sides are in EFL Cup action on Wednesday; Wolves head to Everton, while Sheffield United travel to Fleetwood Town.