City were dominant on Saturday night, with Omar Marmoush scoring twice and Savinho also netting.
“It’s the best game we have played against Newcastle in my period here in ten years,” Guardiola declared afterwards.
“Really pleased because the game against Nottingham Forest we were disappointed. (So) I’m really pleased with how we played, how we behaved, offensively, defensively
“We will be in the draw on Monday.
“It’s many years since we are there and that is so good.
“(It’s) Eight times in a row we are in the quarter-finals, this organisation is top.”
On Marmoush, the manager also said: “I had the feeling that he scored a lot of times against them. He’s a top striker and the finishing, especially our second goal and our third is his biggest quality.
“He has to improve in small spaces and his first control but he deserved it.”