Manchester City's new forward Erling Haaland can make all the difference in their quest for an elusive Champions League title, midfielder Ilkay Gundogan said on Tuesday as the duo prepare to meet their former club Borussia Dortmund. City have never won Europe's elite club competition and were knocked out by eventual champions Real Madrid at the semi-final stage last season, having finished runners-up to Chelsea in the 2020-21 campaign. Speaking to reporters before Dortmund's visit to the Etihad Stadium on Wednesday, Gundogan said Haaland's brilliant start to his career in England can translate to success in Europe.