A place in the FA Cup final - and a chance of securing their first major trophy in 35 years - has been secured on May 14 following the victory against Manchester United at Wembley.
City are also in contention for a top-four finish and a spot in the Champions League for the first time. Next up are struggling Blackburn on Monday at Ewood Park and De Jong said: "Our main goal is to finish in the Champions League.
"That game against United gave us a big confidence boost towards the next league game. It was a big statement and we have to maintain our focus.
"We have got better against United in the last year and a half. It is great, isn't it?"
"We have come quite far as a team. As people say, Rome wasn't built in a day.
Source: PA
Source: PA