The Champions League and Europa League cannot go ahead as normal under the current circumstances of the coronavirus pandemic, says Borussia Dortmund sporting director Michael Zorc.
With the number of confirmed cases of Covid-19 rising in numerous European countries, the challenges of resuming continental competition are clear.
At the end of the 2019-20 season, the final stages of both tournaments were played as straight knockout competitions, with the Champions League finished in Portugal and the Europa League in Germany.
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Last week, the winners of those two tournaments met in Budapest.