The future of Borussia Dortmund’s star striker Erling Haaland could be decided on Friday with a host of top European clubs vying for his signature, the Spanish radio station Cadena Ser has reported. The 21-year-old Norwegian is set to meet with his agent Mino Raiola to discuss offers at the end of the week, the normally reliable channel said Wednesday. However, this is conditional on Dortmund not progressing in the Europa League on Thursday in Glasgow where they will attempt to turn round a 4-2 loss from the home leg of their play-off tie. Cadena Ser reports Haaland, one of the most sought aft…