Delay in the Werner deal is solely down to the practicalities of getting a medical done, The Athletic UK has been told. He can't fly to the UK due Bundesliga Covid-19 regulations and Chelsea docs can't fly to Germany because they would have to isolate for 14 days upon return.

Chelsea could use German FA doc in the meantime but they're more likely to wait until German season is over on June 27 or quarantine regulations in the UK change.