In the wake of the 2015 terrorist attacks in Paris, officials in Spain are taking no chances during the hosting of high-profile sporting events.
Goal reporters in Madrid noted that security within the Spanish capital was more intense than that normally laid on for El Clasico fixtures between Real and Barcelona.
Violent clashes sparked as a result, with Legia supporters tangling with the local police and Real followers.
Some 4,000 Warsaw fans secured themselves tickets for the European encounter, but many more were expected to make the journey as the Polish club continues with its centenary celebrations.
