When he gets the ball in the box, he scores. That’s how simple it is. Those are the words Manuel Akanji used to describe his former Dortmund teammate Erling Haaland after getting reunited with him at Manchester City.##NAJAVA_MECA_6625101##The 27-year-old defender believes there is no limit to Haaland’s potential, and he should know. After making his Cityzens debut alongside the lethal Norwegian in the thumping win at Sevilla, Akanji told the press that he never doubted the striker’s quality, regardless of which team or league he’s in.”I have played with him for two-and-a-half years, and a lot of people asked whether he can score goals at this level when he came to Dortmund, and then they said that he needs to do this in the Premier League as well, and he keeps on doing it. I think it is hard to doubt him anymore at this point. If he keeps on improving, the sky is the limit. When he gets the ball in the box, he scores. He holds up the ball very well, he has the pace to run in behind. You have to be careful of many things as a defender.”Haaland and Akanji in their Dortmund days (©AFP)Pep Guardiola praised Akanji for his performance on his debut, saying his European experience with Dortmund was one of the main reasons for his signing. And Akanji admitted that he had joined City to improve as he shared his first impressions of life in England.”For me, it is a pleasure to be here because it is a chance to get better every day. Even in training, I saw the intensity and the quality of these guys when I came. I want to improve every day. I am here to work to get better.”