Atletico Madrid have added extra spice to their clash against Arsenal by filing a UEFA complaint against their opponents.
The two European giants meet in the third round of the Champions League on Tuesday night at the Emirates.
As is customary in UEFA matches, the visitors trained at the Emirates on the eve of the upcoming fixture.
Being put through their paces in the wet and windy English conditions, the LaLiga side were left incensed that there was no running hot water at the stadium.
According to Spanish news outlet Marca, Atletico alerted Arsenal of the problem at around 6:45pm before taking to the pitch.
Grounds for concern
It is believed that both dressing rooms were impacted with no hot water.
The Gunners are understood to have resolved the issue around 40 minutes later