Pep Guardiola wants complete focus in Manchester City's final two Premier League fixtures before the Champions League final, as he outlined what he is looking for when he comes to selecting a team to face Chelsea in Porto.

A much-changed City side beat Newcastle 4-3 on Friday, but Guardiola admitted there were some expected lapses in concentration in defence after a couple of days off in the week to celebrate winning the Premier League title.

Now, with that out of their system, Guardiola warned his players he is watching their every move in training and in games as he tries to select a Champions League final team that can beat Chelsea.

"I have an idea," he said of how Chelsea might approach the final.

"I know exactly how they play and how they attack but I have two options so we will see. I'm still not clear and these three games will tell me the momentum of the players and the chances they have to play but I'm pretty sure we have to try to start to be prepared to compete in the best conditions possible against Chelsea the games we have to play before this final.

"We can not arrive there and start to play. We have to compete and try to win the final from now on, not on the day."

Asked what he wants to see from his players in the next two weeks before the final, he said the personalities of his players and how they handle pressure will be one of the biggest factors in deciding who starts in the final.

He explained: "The players want it. They will kill me to play and it's nice and they have to feel that everyone can do it. That's all. It will be an incredibly tough decision for me but I have to analyse the opponent.

"[Leaving players out] is tough in a normal game in the Premier League, can you imagine the Champions League final?

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"But in the end the players have a good relation but this job is a business. I'm sorry. The players follow the manager because you win. When you don't win, they leave you a lot.

"There are a few exceptions depending on the personalities but that's why now I observe, I will observe the next two games and training sessions because I know they are going to do everything to try to win it.

"But at the same time I have to see the way I want to play and defend and the mentality of the players, the guys who handle pressure better, and in that moment try to be honest with myself for the team and do the best selection possible - knowing that we have five or six substitutions in the final so everyone has to be ready because many things can change and happen in the final."