According to reliable Spanish sources Onda Cero and Diario AS, there is a growing fear that ISIS will target the upcoming Champions League quarter-finals with terror attacks.
ISIS (also known as Daesh) has reportedly published an open threat with a photo titled 'kill them all' via their media outlet Al Azaim Foundation.
The photo has the names of the four stadiums where quarter-finals will be played this week.
In a matter of hours, Arsenal are due to take on Bayern Munich in the first-leg quarter-final at the Emirates this Tuesday.
The Emirates has been named in the threat by ISIS in addition to the Parc des Princes, Metropolitano Arena and Santiago Bernabeu.
ISIS launched a terror attack in Moscow at the Crocus City Hall, a large concert hall, on March 22. Armed men entered the hall forcefully and opened fire on the attendees, killing 143 people and leaving over 200 wounded.
