Borussia Dortmund's Champions League tie at home to Monaco on Tuesday has been called off after an explosion hit the hosts' team bus en route to the stadium.
Marc Bartra was hospitalised with a cut from the detonation, which has led to the game being moved by 22hours to Wednesday night for security reasons.
Police in Germany have confirmed that three explosions hit the Dortmund bus.
"In the build-up to the Champions League match between BVB and Monaco there was an explosion in the vicinity of the BVB bus shortly after 19:00," an official statement reads.
"The scene of the incident is Wittbraucker Strasse / Schirrmannweg in Dortmund-Hochsten.
"To our knowledge the windows of the bus are cracked - fully or partly -and one person was injured.
"What kind of explosion it was and where exactly something has detonated is not clear at the moment."
The one person injured is former Barcelona defender Bartra and Spanish media outlets claim the player's mother says he's suffered an arm wound in the incident.
The severity of Bartra's arm injury isn't yet known as details begin to emerge on the explosion in Germany.
The explosions and match cancellation will raise questions over safety of high-profile football matches on the continent and could lead to increased security.
Dortmund vs Monaco'snew kick-off time is 17:45 UK time to avoid clashing with Bayern Munich's Champions League quarter-final, which begins two hours later.