Liverpool defender Kolo Toure believes unbeaten Premier League leaders Chelsea will have to prove their mental toughness if they are to match the achievement of the "Invincibles" Arsenal side he was part of 10 years ago.
Jose Mourinho's team have a four-point cushion at the top of the table and could extend that lead further at Anfield on Saturday.
With the season is only 10 matches old, Toure stressed that there was a long way to go before the Stamford Bridge club could think about emulating the Gunners' formidable 2003-04 season.
"They have a good team -- and with the squad they have of course they can do it," he said.
"But it's not the only quality. It is about mentality. Every game is challenging and sometimes things don't go well for you, but you need to be able to come back and carry on fighting.
"The season has just started. We will see. It's a great chance [for Liverpool to end Chelsea's unbeaten run], but the most important thing is we want to win the game."
The match is the first between the two sides at Anfield since the April encounter that proved pivotal in the title race.
With Liverpool top of the table and seemingly on course for their first championship since 1990, Steven Gerrard's slip to allow Demba Ba to race through and break the deadlock just before half-time.
Willian added a late second to spell the beginning of the end of the Merseysiders' title dream, and Liverpool are looking for revenge.
"It is a very important game when you think what they did to us last season," said Toure, whose defensive performance in the 1-0 Champions League defeat to Real Madrid in the Bernabeu has put him in contention to start at the expense of 20 million pound summer signing Dejan Lovren.
"That cost us the league and now we have the chance to beat them. I can't wait for that. Every game for Liverpool you want to win, and Chelsea are playing well now.
"When you play at home in a game like that it is going to be attacking teams. Chelsea attack and Liverpool attack as well. I think you are going to see a great game. This season they will attack, with the players they have they can't defend [all the time]. I think they will just try to score goals and we will try to score goals."
Most of Liverpool's big names are expected to return at the weekend, but manager Brendan Rodgers was impressed by the performance of some fringe players at the Bernabeu and suggested those who were benched should not automatically assume that they will earn a recall.
Midfielder Joe Allen, who started both matches against Madrid either side of two Premier League starts, said the players accepted that regular changes were part of modern-day football.
"Sometimes you can't win with a squad rotation policy, but it is the only way with the demands we have and the added games we have this season," he said. "That is definitely going to get us the best results over the course of a full season.
"It was obviously a big aim for the club in the summer to recruit and get the bigger squad to deal with the demands of being in the Champions League as well as the Premier League.
"You can see the quality we have throughout and everyone is competing for a spot, and that is exactly what you need if you want to be successful."
The Wales midfielder also believes Liverpool's Madrid experience will be beneficial when they face Chelsea.
"When you compete against the best teams and you perform the way we did there are elements of it which will certainly help," he added. "Parts of that performance will hold us in good stead going into the Chelsea game.
"They have started the season very well, but they have to come to Anfield and we know if we bring our 'A' game we can compete against anyone in the league."
Allen said it was important for Liverpool to put April's encounter behind them.
"I think sometimes as a player you feel like you are owed one, I guess, and it wasn't easy [for us] for them to come and take the three points off us, but we can't focus too much on last season," he said.