Chelsea will "have to suffer" in the second leg of their Champions League last-16 tie against Barcelona، says Blues manager Antonio Conte، according to BBC.
The clash kicks off at 9:45 pm on the pitch of Camp Nou، Barcelona، Catalonia، Spain.
Lionel Messi's equaliser cancelled out Willian's opener in the first leg at Stamford Bridge.
"For the manager، for every coach، it is not simple to sleep a lot، especially before these types of games،" said Conte.
"I hope my players also have the same excitement [as me]".
Chelsea will hope to take inspiration from their 2-2 semi-final draw at the Nou Camp in 2012، giving them a 3-2 victory on aggregate.
That year، under Roberto di Matteo، Chelsea went on to win the trophy، beating Bayern Munich on penalties in the final.
Conte said: "You must be excited to play this kind of game at the Nou Camp. A lot of my players have never played in this stadium and we want to try to do our best.
"In the first leg، we played a really good game and it was almost perfect. That was against a team that I consider one of the best in the world.
"But when we made a mistake، we paid for it. The final result of that games gives a great advantage to Barcelona.
"We know very well the philosophy of Barcelona. For sure they want to dominate and play their football، to score and to win the game، and we have to try to do our best.
"We have to concentrate، to stay with your head on the pitch in every moment and to know that there are moments we have to suffer. Not only Chelsea، but every team who plays Barcelona has to suffer.
"They have to be compact and when you have the ball you have to have the feeling in your heart to create the chance to score."
Forward Messi's well-taken strike was his first goal against the Blues at the ninth attempt.
The Argentine recently signing a new contract with the club until 2021، but Barca's financial and strategy director Pancho Schroder said last week that a club might not be put off by the £625m release clause.
However، team-mate Sergio Busquets says Messi will find it "difficult" to leave Spain's league leaders.
The Spain international midfielder added: "When you feel at home with all the things you have here - this is a big club، with good players next to you، you win different trophies، this is a good project، economically he's doing well.
"All of this is positive. It's difficult to find this in other places. We know the Premier League is a spectacular league. We would like to play there، but if you take all the positives and all the negatives، it's very difficult to leave Barcelona."
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Conte said: "Andres Iniesta is a genius of football. I like to compare him with Andrea Pirlo [who played under Conte for Juventus and Italy].
"This type of game is right to face the best players. I don't hope that they could miss out through injury."
Barca coach Ernesto Valverde added: "It is a very important game. It is down to the player. It is a game you can only play if you are 100%."
Chelsea defender Antonio Rudiger is available again after missing last Saturday's win over Crystal Palace، while the Blues have no other injury worries.