Cristiano Ronaldo's Portugal start their Euro 2016 campaign on 13 June against Iceland, the smallest nation to qualify for the Euros. With a population of just 330,000, Iceland beat 1988 European champions Netherlands twice as well as Czech Republic and Turkey in the qualifying stage.
Also featuring in Group F are Austria and Hungary. Though Portugal have never lost in the group stages of the European Championships, the team is once again looking to Ronaldo to carry them through. But apart from an inferior supporting cast and his group opponents, the Real Madrid star now has to deal with an unlikely threat.
Hafthor Bjornsson, who finished runner-up at the 2014 World's Strongest Man competition, plays Gregor Clegane, aka The Mountain on Game of Thrones. The 6.7-foot actor hails from Iceland and has threatened to crush Ronaldo's skull if the latter is to score.
"My name is Hafthor Bjornsson, from Iceland. I am 'The Mountain' from Game of Thrones. I have a message for Cristiano Ronaldo," he warns in a video.
"I know you're playing against Iceland in the first game. If you dare to score a goal against my teammates, I will find you and crush your head like I did to the Red Viper."
The Mountian's most famous scene in the HBO series was his trial by combat battle against Tyrion Lannister’s champion, Oberyn Martell, aka the Red Viper. In a particularly gory scene, the Mountain killed the Red Viper, crushing his head with his bare hands.
Though the Red Viper poisoned Clegane during the trial, he was brought back to life by Qyburn, a former maester, after several experiments. The Frankenmountain, as he is now referred to by fans, is back on the show in a stronger, gold-plated avatar.
In the video, which you can watch below, Bjornsson makes the menacing threat and it's all very scary until he bursts into a fit of giggles. Should Ronaldo re-consider scoring in the Euro 2016 opener? Maybe it would be wise for him to just pass the ball to a teammate if an opportunity in front of goal arises.