
Korey Smith netted a stoppage-time victor as the Championship promotion hopefuls booked a two-legged semi-final with Manchester City.
The Championship side will now face runaway Premier League leaders Manchester City over two legs, but having also seen his team eliminate Watford, Stoke and Crystal Palace, Johnson can not wait.
Manchester United manager Jose Mourinho, who saw his chances of winning a fifth League Cup ended, mixed praise for the victorious underdogs with the observation that they were also "lucky".
'THEY FOUGHT TO BE LUCKY' "It was in our best period that we lost the game".
More news: Virginia election ruled a tied, winner will be chosen at random"For them it was a big, big day". In the first half we lacked the intensity that they had.
United had earlier fought back, with Zlatan Ibrahimovic cancelling out Joe Bryan's opener for City, who are third in the Championship.
They made United the fourth Premier League victims of their fairytale Cup run when, latching on to a fine chipped pass from substitute Matty Taylor, Smith took the ball expertly on his chest and swivelled to fire home left-footed in the final seconds.
English champions Chelsea also defeated Bournemouth 2-1 in a dramatic finish at Stamford Bridge to join Arsenal and Manchester City in a high-quality semi-final lineup.
More news: After US veto, UNGA to meet on Jerusalem statusBristol City manager Lee Johnson and assistant manager Jamie McAllister celebrate after the match against Manchester United. Of course we don't want extra-time, of course we try to win the game in the 90 minutes - which is why I say they were lucky. It has been a long time since we had a result like that at Ashton Gate.
Mourinho and Guardiola both downplayed the post-match scuffle.
"They've done very well against us lately, especially at Wembley but if I put myself in the Arsenal camp, I don't think it's ideal for them to play us over two legs".
More news: Send a text to end your contract — Mobile phones