Newport manager Michael Flynn says beating Manchester City in the fifth round of the FA Cup on Saturday would represent the biggest shock in the history of the competition.
League Two County are 82 places below Premier League leaders and reigning champions City in the football pyramid.
However, Flynn believes his underdogs can add Pep Guardiola's side to a list of recent Rodney Parade scalps that includes Leeds, Leicester and Middlesbrough.
"If we win this, whether it's extra time or penalties and I don't care how we do it, it will be the biggest shock in FA Cup history," said Flynn.
"I say that with the biggest respect to other big giant-killings.
"My reasons for that are because of the sheer gulf in finances, the quality of the players Man City have, the level they are playing at, and that they have the best manager in the world (Pep Guardiola) right now.
"So for those reasons it will be the biggest shock the FA Cup has ever seen."
Newport have won only twice in the league since the end of November and have slipped to 15th in the table.
But during that time frame, they have beaten Wrexham, Leicester and Middlesbrough in the FA Cup, to reach the fifth round for the first time in 70 years.
Asked if it was plausible that there could be a surprise against Manchester City, Flynn said: "Of course there can.
"Otherwise I'd just turn up, give them the game, say 'let's shake hands', and walk off.
"Who said we were going to draw with Tottenham or beat Leicester, Leeds and Middlesbrough?
"These players have a knack of rising to the occasion and are a fantastic group."