Hayes and Yeading United face a tough challenge if they are to keep their FA Cup hopes alive when they travel to Kingstonian on Saturday in the third qualifying round.
Although on paper United will start out as favourites against a side two divisions lower the K's have already shown they are a tough nut to crack this season.
In the previous round they crushed Braintree Town 4-0 at Kingsmeadow Stadium and Garry Haylock's side know all about the qualities of Brain-tree after Saturday's reverse against the Essex side.
Winger Dean Lodge scored all four goals that day, a performance that led to him being voted player of the round.
The K's have made an impressive start to the season and head the Ryman League Division One South table and are unbeaten in the league.
The K's first blip of the season came on Saturday when they lost 3-2 against Whitstable Town in the FA Trophy.
There could be several familar faces in the Surrey side's line-up with Jamie Beer and Tommy Williams both having had spells with Hayes in the past while defender Adam Thompson played for United last season.
Another player United will need to watch is the much travelled striker Carl Wilson-Denis, who among many clubs has played for Maiden-head United, Newport County, Eastleigh, Fisher Athletic and Havant & Waterlooville.
Haylock will be looking for his side to bounce back after Braintree ended their eight match winning streak in the league. They were also replaced at the top of the table by Team Bath and have slipped down to third spot with Chelmsford City now second.
Saturday's clash also brings the incentive that victory means a cash windfall of £7,500 and will take United closer to a possible even bigger first round proper pay day.