By ESPNSTAR.com staff
Real host Celta Vigo in their next La Liga fixture but will have to do so without several first team defenders, including the likes of Marcelo, Alvaro Arbeloa and Fabio Coentrao, who have all been ruled out because of injury.
However, Casillas is unperturbed by the lengthy injury list, citing the club's strength in depth, and is confident that Real manager Jose Mourinho will make the right choices in selecting the replacements.
"We have enough alternatives to plug the gaps left by the FIFA virus," Casillas was quoted as saying by the Real Madrid official website.
"There are players in our reserves who are very capable indeed. I am sure the boss will pick the best people for the game against Celta."
Casillas also spoke of the club's chances in the Copa del Rey; Real have been drawn to face Alcoyano and although Los Blancos are heavy favourites, the Spain international has urged his side to remain focused and not get complacent.
"There's a lot ahead of us and we have to get through two qualifying rounds," Casillas declared.
"Now we must focus on Alcoyano.
"We've had some unpleasant surprises against humble teams and we have to maintain our record over the last few years if we are going to reach the final of the Copa del Rey.
"You have to give Alcoyano the respect they deserve because they have nothing to lose and everything to play for."
The 31-year-old is one of the longest serving members in the team, with an incredible 636 appearances to his name so far and although he has achieved cult status at the club, Casillas is still determined to keep his head down and continue doing what he does best.
"People are very fond of me and they respect me a lot," the Sports Prince of Asturias Award recipient mused.
"It's something I'm very proud of. I try to do things as well as I can so that they enjoy watching Real Madrid and the national team play."
Despite the positives in playing for Real, Casillas admits that he has received his fair share of criticism during his time at the club but claimed that he had long learnt how to live with it.
"You take them [criticism] with a sense of humour," Casillas revealed.
"You have to respect people's right to criticize. As long as it's constructive criticism, it's a positive thing.
"When you've been at the top and in a club like Real Madrid this long you know that in two or three matches things can change.
"I've been living many years with this. You have to keep going and try to turn those contrary voices around."
Real have not made the best of starts to their La Liga season so far, managing to win 11 points out of a possible 21 and currently trail table toppers Barcelona by eight points.