In the last few years Manchester City have always started well and after that were not able to achieve the results.
The England worldwide, who moved from Tottenham in the summer in a £45million, says the pressure from a strong squad is keeping the players on their toes and that if standards slip, they will be out of the side.
"The transfer window closed on September 1 but we are still working", he said.
"The brilliance, the style, I can talk about that and defend it 100 per cent, but you are demanding titles and not the way we play". We are professionals and all the players are here to win games.
"It's just September, [it's] game by game and we focus on all competitions now".
"It's too early to say, because I have players here who I didn't have in the past", he added.
"We understand the strengths and weaknesses of the players and the manager but this is going to be a game of maximum complexity". I need to keep training hard, keep working on the things I need to improve on so I get that sharpness. It is a good dressing room to be around.
They have thrashed Liverpool, Watford and Crystal Palace in the Premier League by an aggregate score of 16-0 and opened their Champions League campaign with a 4-0 hammering of Feyenoord. They have spoken with [agent] Patrick (de Koster) in the summer: and said give us time to make the transfers and we speak after the summer.
Walker's fellow full-back Benjamin Mendy faces a late fitness test on a knee injury before the match against the Ukrainian champions, while Ilkay Gundogan (knee) and Vincent Kompany (calf) are set to miss out once more.
It was a manager reacting to his team losing the ball, there's a picture of his arm round the fourth official Mike Jones just before it happened and I don't think he even knew what he did wrong.
But while our form is electric and it's very easy to get carried away, Guardiola has been quick to remind us of last season when the wheels came off a ideal ten wins out of ten start very quickly.
"All of them are going to play, some of them are going to rest".
Our greatest moment was probably beating Notts County in the competition two years ago, but bouncing back from the York defeat last weekend by winning 1-0 at Gainsborough showed great character again, which also helped build a bit of a gap between ourselves and third place. Srna insists he is innocent and the 35-year-old's absence will be keenly felt by a team that has already been forced to overcome more than its fair share of problems on and off the pitch in recent years.