Lunin plays well in Real, but he sometimes makes mistakes, and it is difficult for him to compete with Courtois. Although if you remember how he played in the Champions League, when Courtois was injured, he was one of the most important players who helped Real. Real has had a lot of injuries lately, so they need a reliable second goalkeeper, but so far it is impossible to call Lunin reliable, because he still makes mistakes, maybe he just needs more practice.