A bomb exploded Tuesday night, in an apparent attempt to target the Borussia Dortmund football team bus ahead of their Champions League knockout fixture against AS Monaco.
The club reported that one player, defender Marc Bartra, had been injured in the explosion.
He underwent an operation on Tuesday night after breaking the radial bone in his arm and suffering debris being lodged in his hand.
Team captain Marcel Schmelzer said:
We're all in shock and our thoughts are with Marc. We hope that he will make a speedy recovery.
The match has been rescheduled to Wednesday night, and the team were committed to playing the match for Bartra.
However, with the postponing of the fixture, many Monaco fans, who retained their tickets, were left in Dortmund without accommodation, perhaps hoping to travel home immediately after the game.
To resolve this situation, Dortmund asked supporters to loan Monaco fans their spare beds, sofas and rooms for the night.
Many replied, and the hashtag was a scene of community and solidarity.
The account later tweeted thanks to everyone who had helped with the accommodation situation.
Another great show of community from a great club.
Dortmund play Monaco tonight at 5.45pm GMT at the Signal Iduna Park.