The hoped-for onslaught didn't materialise as the Robins regrouped, threw bodies behind the ball and occasionally threatened on the break, but with nearly the last touch of the game, Bernardo sent in a pinpoint cross for Aguero to glance past the keeper and give the Blues a narrow first leg lead. Flint towered over the Manchester City defence from a corner but couldn't get the required contact.
However, Gundogan believes Man City can not take tonight's game lightly after Bristol City eliminated Man United in the previous round.
Squad rotation could be in Guardiola's thoughts amid Man City's busy run of fixtures across three competitions - the league, the FA Cup, and the League Cup - but he could choose to go hard in the first leg and try to have the semifinal all but secured before heading to Bristol for the return match on January 23. We want to win both games. It's important and we're going to try.
Its latest triumph was a 4-1 win over Burnley in the FA Cup third round on Saturday and Guardiola says City must begin hoarding silverware if it is to earn a lasting reputation to match its stellar form this term.
With Liverpool up next in the Premier League, where City holds a 15-point lead, Guardiola may opt to give many of his reserves a run-out. About goalkeeper, it remains to be seen whether Pep Guardiola will allow Claudio Bravo to continue in goal now City are in the semi finals.
"When they come here, we can be quite sure they are going to play very defensively".
The club's all-time top goalscorer Sergio Aguero came to the rescue with an injury-time winner
This time, Johnson wants to steer clear of "wine talk" and would just like to talk to Guardiola about "tactics and his career" after the game.
As for the Robins, Lee Johnson chose to make a significant number of changes to his side as they fell to a 3-0 defeat to Watford at Vicarage Road as the Hornets safely progressed through to the fourth round of the competition.
Bristol City meanwhile sit fourth in the Championship but suffered a 3-0 loss over the weekend.
Bristol City upset Manchester United in the quarterfinals to advance. It was last in the top flight in 1980. Bravo craftily picked out De Bruyne in what was the only pass on, who then drove towards the edge of the box, played a one two with Sterling and powered the ball into the back of the net. "Now we have to do it against a side that is used to having up to 85 percent possession in games".
Asked about City's chances of winning the quadruple, the Germany midfielder replied to reporters: "The what?"
In the other semifinal, Arsenal takes on Chelsea on Wednesday, with the first leg at Chelsea's Stamford Bridge.
North Kashmir: Four policemen killed in IED blast in Sopore
Soon after the attack army and paramilitary forces launched searches to nab the attackers. ASI Irshad Ahmad, 58, leaves behind his mother, wife and four children.