Espinoza said he had received some feedback on what to expect having "some eyes" on recent Caversham games.
"Hopefully they did the same on us last week when we drew with Tauranga City. We had four or five players out for that game when we conceded a goal in the last five minutes for a 2-2 draw."
For the South Auckland club the Chatham Cup run has been a blessing after the strife they found themselves in earlier in the season when one of their players struck a referee.
"That player is no longer with us, we have moved on," said Espinoza.
In 1987, City reached the semifinals where they bowed out to Cup giants Christchurch United.
In tomorrow's feature quarter-final, four time winners Central United are at home to Eastern Suburbs who have lifted the coveted trophy five times, but not since 1969. Now coached by Kevin Fallon, Suburbs have had a wretched league season and see the Cup as one way to salvage some glory.
Birkenhead United entertain Lower Hutt City in the other match between two teams yet to reach a final with the visitors buoyed by their fourth round win over Napier City Rovers.
Women's Knockout Cup hot favourites Claudelands Rovers are at home to Massey in one semifinal while Three Kings United entertain Coastal Spirit in the other fixture.