Thibaut Courtois has been previewing Sunday's big game...
Youth often goes hand in hand with inexperience. But not in Thibaut Courtois's case.
Only 22, the Belgian has already tasted Champions League and Copa del Rey finals, as well as one of the most intense derbies in the world between Atletico and Real Madrid.
But is he nervous? What do you think...
“At Atletico the derbies were huge. Real Madrid were the enemy and the atmosphere was so intense," Courtois told the London Evening Standard.
"I’m not sure what the feeling will be like around the ground for Arsenal. I know there are a lot of London derbies to be played during the season, matches against Tottenham and so on.
“Yes, it is something new for me to play against Arsenal, like it was when I played against Manchester City last month, or when we face Manchester United. There will be a lot of special games like the Arsenal game this season - but I won’t be nervous.”
Courtois has made an impressive start to life with the Blues after rejoining following loan spells in La Liga with Atletico Madrid.
Jose Mourinho's side conceded several goals in their first few games but have tightened up since, while the 22-year-old's performances have so far seen very few errors.