Liverpool might come up against the Belgian playmaker on Sunday if he passes late fitness tests and will nearly definitely have a place on the bench even if he is unable to start the game at Anfield.
Carragher was obvious in naming former recruits Liverpool as his top contenders and also insisted that defending champions Manchester City were also a force to reckon.
De Bruyne was not expected to return until nearer the end of October, or even November, after damaging cruciate ligaments back in August but following treatment in Barcelona he has made a rapid recovery. "We will see tomorrow", explained Guardiola.
It was not just the result but the manner of it that left Reds fans disappointed, but Klopp sees plenty of cause for optimism ahead of Sunday.
"Liverpool is one of two greatest teams in England".
"They are so strong", said Klopp. We have to prove that we are as good as we can be and we have shown that in a few moments.
"They are a top side in the way they play".
"A lot of times it was really close that it could be good but there was no real flawless decision". When somebody's telling me, "Good luck for Sunday", I think always, "Unfortunately, we need it".
"The best way is that we should not need the police".
"Why should our fans have to protect our bus?"
But Guardiola bristles at suggestions that Klopp has got his measure and said: "Never when I play a manager do I have to beat him to get more satisfaction - I try to beat his team". "I didn't watch that documentary, I heard about it and, now I saw it, is there anything where you think, 'Wow?'" said Klopp.
Almost half of all City's defeats last season came against Klopp's team, including in both legs of their Champions League quarter-final, while a 4-3 loss at Anfield ended their hopes of going a whole Premier League season unbeaten.
New Customers can get Liverpool at an enhanced 40/1 to beat City or 50/1 City to beat Liverpool.