Every time Hector Bellerin has a good game for Arsenal, there is a familiar thought that goes through the minds of 60,000 fans.
Somewhere in Catalunya, they believe, there is a Barcelona executive sitting in a beautiful mahogany chair in a darkened room, watching this Spanish starlet rise to prominence before reaching for his quill. Dipping it in the finest ink known to man, he addresses a letter to the 20-year-old telling him to come home.
After all, Arsenal fans have been through this emotional turmoil before. Cesc Fabregas arrived as a scruffy teenager, later becoming one of the world's finest playmaking midfielders and one of the club's youngest ever captains. Then he quit, leaving north London to achieve his real dream: playing at the Nou Camp.
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Bellerin has followed a very similar path to that of Fabregas up until now. He left Barcelona's La Masia academy after being coaxed to Arsenal with the promise of first-team football. Arsene Wenger delivered on that promise and, last night, Bellerin repaid his faith with an excellent performance against Bayern Munich.
When he broke away in the final seconds of the match, and crossed the ball to Mesut Ozil, who sealed a special night for the Gunners, you can't help but feel that Barcelona were watching and plotting in equal measure.
But Bellerin moved to reassure Arsenal fans that things are different this time. He loves London and is not thinking about a return to his hometown.
Here to stay
Speaking before the game yesterday, he told Marca: "[I regret] nothing. I am very happy to have taken this step. The simple fact is playing as many minutes in the Premiership and in the Champions League in a team like Arsenal makes me very grateful.
Asked about a return to La Liga, he said: "That's not me. I came to Arsenal to stay, not planning to return. I'm happy and [am getting] minutes. It is my fifth season and I remain at home. It would be very difficult to leave."
We understand that was a rather morbid story on what should be a glory-filled morning for Gunners fans, so here are some of the best tweets reacting to Bellerin's special performance last night.