https://www.standard.co.uk/sport/football/luca-waldschmidt-chelsea-transfer-latest-gerd-muller-a4417991.html

https://metro.co.uk/2020/04/18/chelsea-target-20-deal-freiburg-striker-luca-waldschmidt-12577040/?ITO=squid&ito=newsnow-feed

https://amp.sportsmole.co.uk/football/chelsea/transfer-talk/news/chelsea-planning-move-for-luca-waldschmidt_396898.html

https://www.mirror.co.uk/sport/football/transfer-news/chelsea-line-up-20m-transfer-21890846

https://www.dailymail.co.uk/sport/football/article-8233809/Chelsea-open-talks-possible-20m-deal-Freiburg-forward-Luca-Waldschmidt.html