► Subscribe to Sky Sports News: http://bit.ly/SkySportsNewsSub Borussia Dortmund have turned down Chelsea's opening offer for striker Erling Haaland, according to Sky in Germany. Chelsea offered Dortmund either Tammy Abraham or Callum Hudson-Odoi in part exchange for Haaland, but the Bundesliga side are determined to hold onto the 20-year-old. The club are keen to sign a new striker this summer after struggling in front of goal at times last season. #SkySportsNews #SkySports #Haaland More from Sky Sports on YouTube: ► Sky Sports Retro: http://bit.ly/SkySportsRetroSub ► Sky Sports: http://bit.ly/SkySportsSub ► Sky Sports Football: http://bit.ly/SSFootballSub ► Sky Sports Boxing: http://bit.ly/SSBoxingSub ► Sky Sports F1: http://bit.ly/SubscribeSkyF1 ► Sky Sports Cricket: http://bit.ly/SubscribeSkyCricket ► Sky Sports Golf: https://bit.ly/SubscribeSkySportsGolf