Bobby Reid of Bristol City celebrates after scoring his team's second goal against Watford. Getty Images
Bristol City secured a memorable 3-2 comeback victory as Marco Silva's promising start to life at Watford came to a shuddering halt in the Carabao Cup on Tuesday.
Lee Johnson made nine changes at Vicarage Road with half an eye on Friday's Championship clash with Aston Villa, yet it was the unfancied Robins that emerged victorious at Vicarage Road.
Etienne Capoue put the Premier League side ahead early in the second half, only for 18-year-old Freddie Hinds to draw level in style before substitute Bobby Reid and Niclas Eliasson secured City the second-round win at Watford.
Islam Slimani, Demarai Gray and Ahmed Musa reminded Leicester boss Craig Shakespeare of their capabilities by scoring the goals in a 4-1 victory at Sheffield United.
None of the trio has started for the 2016 Premier League champions this season, but Gray's trickery, incision and cool second-half finish demonstrated why Bournemouth have been linked with him.
Slimani -- last year a £28 million capture from Sporting Lisbon -- was maybe fortunate to be in a position to grab a double after somehow managing to avoid dismissal on the stroke of half-time.
He took his goals well once the Championship Blades began to lose heart -- they had threatened early on at Bramall Lane through David Brooks.
Chris Wilder's second-string side would find some late joy thanks to Caolan Lavery, yet Musa's stoppage-time finish rubber-stamped the outcome.
James Tilley, centre, celebrates with his Brighton teammates after scoring the lone goal in a win against Barnet. Getty Images
Teenager James Tilley scored Brighton's first goal of the season as they edged past League Two Barnet..
The 19-year-old, making only his third senior appearance, broke the deadlock nine minutes after coming on as a half-time substitute for Anthony Knockaert.
When Liam Rosenior forced a rare save from debutant Barnet keeper Craig Ross, Tilley was on hand on to sweep the ball home and secure a 1-0 victory.
Jay Rodriguez opened his account for West Brom as Tony Pulis' side swept aside Accrington 3-1, transferring their Premier League form to cup play.
After kicking off the campaign with 1-0 wins over Bournemouth and Burnley, the Baggies overpowered their League Two hosts, Salomon Rondon, Matt Philipps and Rodriguez all on target before Tom Dallison became the first player to score against them this season.
Rodriguez's display, capped with his rasping strike from 18 yards but also including a fine assist for the opener and plenty of neat touches in the final third, suggests a summer fee of around £12 million represents shrewd business, though sterner tests than this await.
Bournemouth put their poor start to the season to one side as they came from behind to defeat Birmingham 2-1.
The Cherries have lost both of their opening Premier League fixtures and it seemed their woes would continue when they fell behind to Maikel Kieftenbeld's 12th-minute opener.
However, they equalised in the opening minute of the restart through Ryan Fraser and deservedly booked their spot in the next round when Marc Pugh struck what would prove to be the winner midway through the second half.
James McArthur scored a late brace as Frank de Boer's Crystal Palace progressed with a 2-1 victory over a youthful Ipswich side.
The Scottish midfielder cut inside to find the top left corner with 14 minutes remaining at Selhurst Park, before sealing De Boer's first win as Palace boss by finding the top right corner eight minutes later.
Manchester City loanee Bersant Celina pulled one back for Ipswich in stoppage time, but the Eagles hung on.