Barnsley boss Valerien Ismael says they'll be ready for Thomas Tuchel's Chelsea in tonight's FA Cup clash.
Ismael has playing and coaching experience in Germany.
He told the Daily Mail: "It's a good choice for Chelsea. He is one of the best in Europe. His teams have a clear way: possession-based, very flexible, many rotations through the middle."
Ismael lost their only managerial duel — his Wolfsburg against Tuchel's Borussia Dortmund — and is relishing the chance to pit his young players against a Champions League team.
"It is a chance for us to dream and measure our quality," says Ismael.
"Can we stamp our philosophy on that team? It's great for my young guys to compete against one of the best teams in the world.
"It's a massive challenge but we want to find a way through. The FA Cup has its own rules. That is one of the things I have learned."