David Albelda has warned Chelsea that they will have to give everything they have if they want to knock Valencia out of the UEFA Champions League in Tuesday's quarter final, second leg in the Mestalla.
The Spanish team's captain believes that his side are very difficult to beat on their own ground and is confident that they will be able to contain The Blues.
Although a repeat of the goalless draw in their home game in the last round against Internazionale would be enough to see them through, Valencia are determined to go out and attack.
"We are not invincible, but we are a difficult team, especially at home," Albelda stated.
"If Chelsea want to go through then they are going to have to work very hard and even then it will be very tough for them.
"We are not going to to go out and defend because we will also be looking to attack them and I think we can do a lot of damage."
Recognising the strength in depth that Chelsea have available, Albelda stated that los Che will not be picking out individuals to mark.
"No one player can be left alone because both sides have so many great players," he explained.
"It is not easy playing against players like this as even on a bad day they can win a game for their team."
After missing out in the 2000 and 2001 finals, Valencia are desperate to win the Champions League this year, but know how hard it it will be, even with only two rounds left.
"It would be the ultimate achievement, but it is very difficult because we are playing against more powerful sides," Albelda continued.
"We are in a good position now, but know how hard it is going to be."
After playing at Stamford Bridge last week, coach Quique Sanchez Flores was forced to rest several players at the weekend and the title challengers were ultimately beaten at Athletic Bilbao.
"It is difficult to keep up the same high level in the league, as well as the Champions League," Albelda said.
"But I do not think that we are playing for our season. We still have to assure ourselves of playing in the Champions League again next season and to finish in the top two would be great.
"Our aim this season was to qualify for the Champions League again and from there anything can happen. Winning a trophy would be extra special though."