The Blues are in third position in the Premier League table and eight points adrift of current leaders Liverpool FC after an impressive start to the season.
Chelsea FC were 2-0 winners against Crystal Palace at Stamford Bridge on Saturday afternoon thanks to goals from Tammy Abraham and Christian Pulisic in west London.
The Blues have won their last six Premier League games to climb the top-flight standings under their young manager and club legend Frank Lampard in the past couple of months.
Chelsea FC have only lost two Premier League games so far this season following a 4-0 loss at Manchester United before a 2-1 defeat by Liverpool FC at Stamford Bridge.
Lampard’s side came from 4-1 down to rescue a 4-4 draw with 10-man Ajax in the Champions League last week in a dramatic group-stage fixture at Stamford Bridge.
Former Blues manager Mourinho admitted that he’s been impressed with Lampard and his young team this season, but the Sky Sports pundit is worried for Chelsea FC ahead of their trip to Manchester City.
“In the first weekend I was worried and I’m still worried with the big matches. I think fantastic work. The kids coming into the team are fitting amazingly well with the top class players like Willian and Kante,” Mourinho told Sky Sports.
“I think really, really great work by Frank. But, they lost twice against United, they lost against Liverpool at home. They conceded four goals against Ajax and I’m very, very curious to see Chelsea in the next match at the Etihad.
“I’m curious to see if they found that great empathy between the good football they play and the pragmatism that the top teams must have to play against top teams.
“When they find that I think they have a great team for the future. I don’t believe in them to finish top two, but I believe very seriously for them to finish top four.”
Chelsea FC have collected 26 points from their opening 12 games under Lampard after he replaced Maurizio Sarri in the summer.
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