Barnsley's under 18s have been ‘bouncing around the club all week’ ahead of their FA Youth Cup match at Chelsea tomorrow.
The 2pm kick-off will be at Kingsmeadow Stadium in London.
Chelsea have been in eight of the last ten finals, winning seven.
Barnsley under 18s coach Tom Harban said: “The lads have been very excited this week.
“They don’t get to play teams like Chelsea every week so there is a real spring in their step. Chelsea have a great record in the competition and they always produce top players.
“We want to go down there and be competitive.
“We are playing well and we have a lot of good lads with good attitudes. We are not going down there to have our bellies tickled.
“We want to cause an upset.
“It’s a big jump up in standards but the lads fancy themselves.”
Harban, who is from Carlton, signed for Barnsley aged 12 and spent more than a decade at the club.
He was part of the squad that reached the Youth Cup semi-finals in 2002, after beating Manchester United at Old Trafford live on Sky, while they also won at Anfield against Liverpool the next season.
He said: “I try to use those experiences to inspire the players.
“I have a little bit of banter with them when it comes to Youth Cup time because I was part of a squad that did well.”
Harban left Barnsley in 2008 without playing a first team game then, after spells at Bradford City and Halifax Town, quit professional football and played for Athersley Rec while qualifying as a coach.
His under 18s mirror the philosophy of the first team.
He said: “We play a high intensity game with high pressing – that is the club’s philosophy.
“It’s maybe changed a little bit in the last few weeks since the new first team gaffer (Valerien Ismael) has come in but the main core of it is similar.
“We try to prepare players to go up into that first team environment.”
The under 18s drew 2-2 at Birmingham City on Saturday.
The goals came from Kareem Hassan-Smith and an own goal.
Barnsley under 23s won 2-1 at home to Birmingham on Tuesday.
The visitors took the lead but then saw a penalty saved by Henry Kendrick.
Dan Bramall levelled and Cameron Thompson won it.
Martin Devaney’s side have won their last four matches and are unbeaten in seven.