League Two Shrewsbury produced an astonishing fightback from 3-0 down to beat League One Charlton 4-3 in the first round of the Carling Cup at Greenhous Meadow.
The Addicks had appeared to be cruising as Pawel Abbott's first goals for the club and a strike from Lee Martin put them in control. But Jake Robinson and a Yado Mambo own goal put the Shrews back in it by half-time, and Daniel O'Donnell and Matt Harrold completed the turnaround.
Substitute James Hanson scored an extra-time winner as Bradford City caused a upset by beating Championship side Nottingham Forest 2-1 in a pulsating first-round tie at Valley Parade.
League Two Bradford had already come back from 1-0 down to force the tie into extra-time when they were awarded a free-kick on the edge of the penalty area in the 100th minute. Simon Ramsden's low right-foot shot was blocked by keeper Lee Camp and, in the ensuing scramble, Hanson - last season's leading scorer - forced the ball over the line.
Neil Warnock found himself on the wrong end of an embarrassing upset as QPR were dumped out by League Two Port Vale in a 3-1 loss.
A flurry of early goals propelled Leeds to an impressive 4-0 victory against lacklustre Lincoln in the first round at Elland Road. The Championship side recovered from an opening day defeat to Derby in emphatic fashion and were set on the way by first-half goals from Jonathan Howson, Luciano Becchio and Lloyd Sam.
Neil Kilkenny's penalty added to the tally after the break as the Red Imps were condemned to an opening round exit for the fifth successive season.
Two goals from David Norris ensured Ipswich boss Roy Keane enjoyed his 39th birthday, but the Tractor Boys needed extra-time to see off brave Exeter with a 3-2 win.
Summer signing Andy Fleming had a dream debut as he scored both Morecambe goals in a superb 2-0 win over Coventry.
Leicester advanced at the expense of Macclesfield for the second successive season after defeating the League Two club 4-3 at the Walkers Stadium.
A stoppage-time goal by Alan Lee gave Crystal Palace a 1-0 victory in a pulsating first-round tie against Yeovil at Huish Park.
Darren Pratley signalled his commitment to Swansea as they booked their place in the second round with a comfortable 3-0 victory over Barnet.
The midfielder, who is keen on a switch to interested Nottingham Forest according to Reds chief executive Mark Arthur, grabbed the killer second goal for the Swans before taking off his shirt and celebrating in what appeared to be a show of loyalty to the home fans.
Shaun Barker's own-goal ensured Derby's former Crewe contingent suffered an unhappy homecoming as the Rams suffered a shock 1-0 defeat.
County included Alex old boys Robbie Savage, Rob Hulse, John Brayford and James Bailey in their side, but their former club did not roll out the welcome mat.
MK Dons came from behind as Jabo Ibehre's double saw them beat Dagenham and Redbridge 2-1. Damien McCrory had given the visitors a 13th-minute lead.
Captain Grant Holt marked his return to the Norwich starting line-up with a brace and an assist to help his side to a 4-1 first-round victory over Gillingham at Carrow Road.
Jordan Rhodes grabbed his second goal of the season in the 89th minute as Huddersfield secured a 1-0 win at Carlisle.
Preston cruised past League Two Stockport following a dominant second-half performance. as they won 5-0.
Doubles from Simon Heslop and James Constable helped Oxford on the way to a 6-1 hammering of Bristol Rovers at the Kassam Stadium. Jack Midson and Matthew Green grabbed their other goals.
Southampton beat League One rivals Bournemouth 2-0 at St Mary's thanks to a strike from Adam Lallana and Alex Chamberlain's first senior goal.
Giles Coke got the only goal as Sheffield Wednesday beat Bury while Ian Goodison's tap-in was enough for Tranmere to win 1-0 at Walsall.
Northampton were 2-0 winners over ten-man Brighton as early goals from teenager Michael Jacobs and Billy McKay sealed the win before Matthew Sparrow saw red in the 36th minute.
Danny Graham scored twice for the second successive game as Watford progressed into the Carling Cup second round after easing past Aldershot 3-0.
Martyn Woolford snatched an 83rd-minute winner as Scunthorpe survived a Carling Cup scare against League One Oldham. Djeny Bembo had given the visitors side the lead midway through the first half, but Jonathan Forte turned his constant threat into a goal for the Championship outfit with 25 minutes remaining.
League One Colchester were too strong for League Two Hereford as they recorded a 3-0 win at Edgar Street thanks to goals from David Mooney (2) and Ian Henderson.
Robbie Simpson and Craig Woodman helped Brentford to a 2-1 win over Cheltenham, Shaun Jeffers getting the goal back for the visitors.
Peterborough cruised to a 4-1 win over Rotherham at London Road. Marcus Marshall had given the Millers an early lead but Ryan Bennett, George Boyd, Aaron McLean and Craig Mackail-Smith all got on the scoresheet for their League One hosts.
Former Liverpool trainee Craig Lindfield struck an extra-time winner to steer Accrington through with a shock 2-1 victory at Doncaster. Josh Payne's 47th-minute strike put the hosts on course for victory but League Two outfit Stanley drew level in the 83rd minute when substitute Chris Turner fired home.
Leyton Orient came from a goal down to beat fellow League One side Swindon 2-1. Jon-Paul McGovern had put the Robins ahead but second-half efforts from Ryan Jarvis and Alex Revell gave the visitors the win.
John Spicer's strike saw Notts County claim a 1-0 victory at Plymouth. Rochdale striker Anthony Elding dumped new-look Barnsley out of the Carling Cup with his first goal for the club.
Southend United edged Bristol City in a five-goal thriller, Wycombe lost 2-1 at home to Millwall and Middlesbrough defeated Chesterfield 2-1.