Championship side Sheffield United comfortably beat League One opponents Mansfield Town in round one of the Carabao Cup.
Patrick Bamford put the Blades in front early on and a Mark McGuinness header, followed by Callum O'Hare's late third goal, confirmed their spot in Monday's second-round draw - which will also include the 11 Premier League clubs not involved in European competition this season.
Mansfield won at Bramall Lane in the third round of the FA Cup last season but the chance of a repeat result reduced when Sheffield United scored their opener inside four minutes at One Call Stadium.
Midfielder Joe Rothwell had two shots in quick succession blocked by Mansfield defenders and when the ball dropped back to him again, his third effort was drifting off target until striker Bamford turned it in from close range.
Rothwell missed a glorious chance to double the lead midway through the first half, shooting over from Tahith Chong's pull-back.
Chong, who represented Curacao at the World Cup earlier this summer, went off injured soon afterwards.
Mansfield almost equalised just before half-time but visiting goalkeeper Michael Cooper got down low to his left to keep out Frazer Blake-Tracy's volley.
That would prove to be the closest that the hosts would come to levelling the contest, as centre-back McGuinness powered in a header from Sydie Peck's corner kick to put the tie out of reach.
O'Hare rounded off the scoring, finishing off a swift counter-attack.