When Mark Zuckerberg did a live stream from his former Harvard University bedroom, there was a surprise for Sevilla fans around the world.
As the Facebook founder gave millions of followers a tour of his old digs, eagle-eyed watchers spotted a Sevilla FC scarf hung proudly on the mantlepiece.
The owner is Chris Ulian, a 21-year-old from near Boston, USA.
A student at one of the most renowned universities in the world, Chris decided to spend a year in Spain and, through living with a family in Seville, quickly became a match-going Sevillista.
Since returning to university, his love for the club has not dwindled and his memorabilia takes pride of place in his residence.
"Here the university year has already finished, but I'll stay at Harvard during the summer while I work," Chris said. "The other day they told us that Mark Zuckerberg, the founder of Facebook, was coming to give a speech at a graduation ceremony and they said he might want to visit his room from when he studied here."
With such a famous face on the way, the University told Chris and friends to tidy their rooms, but the Sevilla scarf remained and caught the eye during Zuckerberg's Facebook live.
"A few minutes in I started receiving messages from friends saying that they had seen my scarf," Chris explained. "On the university's website you can see the room in 3D and there are a load of comments asking about the Sevilla scarf. For me it's a privilege to be able to promote my team like that."
"I started receiving messages from friends saying that they had seen my scarf"