Exeter fly-half Ignacio Mieres says the Chiefs face one of their toughest challenges when they go to Perpignan in the European Challenge Cup on Friday.
Mieres played twice for the Catalan side, who made the semi-finals of last season's Heineken Cup, during a loan spell from Stade Francais in 2009.
"This year they're one of the biggest teams to play in the Amlin," Mieres told BBC Radio Devon.
"It's going to be a big challenge and we're really looking forward to it."
And Mieres says the hostile crowd at the Stade Aime Giral will also play their part.
"The people are just crazy about their club, they're fanatics," he said.
"Perpignan usually play in the Heineken Cup and usually fight for the championship in France.
"We know they can be really dangerous, we know what they're able to do and we really need to be focused and expect something big from them."
The French side have the likes of Wales fly-half James Hook, who made his debut for the French side last week, as well as French World Cup stars Nicolas Mas and Maxime Mermoz.
"Their game is really compact, they can play with the forwards and have really good backs as well," added the Argentine.
"We can expect a tough pack and a really good backline with lots of skills."
But Mieres says the prospect of a big European tie has spurred on the Chiefs squad this week after their 24-19 loss to Gloucester on Saturday.
"We're really looking forward to it, you could see it in the week, everyone was really energetic and it'll be a really nice challenge for us," he said.
Exeter failed to make it out of the group stages of the tournament last season but won their first ever European match away at Bourgoin last October.