West Ham United begin their FA Youth Cup challenge with the visit of Aldershot Town to the Boleyn Ground on Tuesday evening.
Academy Director Tony Carr is confident his side will have more than enough to see off their opponents, but has warned his youngsters to guard against complacency.
The Shots, who are currently fifth in the Football League Youth Alliance South East table, defeated AFC Wimbledon 3-0 away from home to reach the third round.
With that result in mind, Carr knows his players will have to be at their best to win through.
"I went to the AFC Wimbledon game and Aldershot were very well organised. Although AFC Wimbledon had the majority of the possession, Aldershot soaked it up and looked very dangerous from set pieces.
"We have to match their work-rate as it is a cup final of sorts for them and an opportunity for them to play on the big stage and make a mark.
"We have got to make sure we are up for the fight and I have told the boys we cannot afford to be complacent. We went down to Plymouth Argyle in the third round last season and they took us to extra time.
"We are favourites to progress, but sometimes that puts more pressure on us than the opposition. We go into this game with nothing to gain and everything to lose.
"The boys have got to go out there, be professional and do their jobs."
While Carr is aware of the threat posed by Aldershot, he remains confident of progressing, despite having his recent training sessions affected by the cold snap.
"We are in good form and have been playing well in recent weeks to beat Chelsea, Arsenal and Portsmouth. The lads are feeling good and are looking forward to playing at Upton Park.
"The boys feel they are getting things together and are ready to put in another good performance.
"We trained over the weekend and were back out on the grass on Monday, which was good, so I expect everyone to be fully prepared for the game."
Team news-wise, Carr will have a near full-strength squad to pick from. Centre-back Paco Craig has recovered from an ankle problem, but England Under-17 winger Matthias Fanimo is ruled out.
West Ham have won the FA Youth Cup on three previous occasions, lifting the trophy in 1963, 1981 and 1999.
Kick-off at the Boleyn Ground on Tuesday is at 7pm. Admission is £3 for Adults and £1 for U16s.