It was a magical day in Cardiff on Saturday as Wales crushed Ireland to win the Six Nations Grand Slam.
But for one little boy, Josh, it was made even more special when an Irish fan caught a T-shirt tossed into the crowd by man of the match Gareth Anscombe... and then kindly gave it to him.
Josh had come to Cardiff with his Dad and brother for the children's first ever international rugby match.
They sent back a photo of Josh in the top to mum, Bethan Powell Mansell, who thought her husband had bought it.
It was only when they got home that she heard the full story and realised it was a gift from a kind stranger.
Bethan posted on Facebook to try and find the mystery Ireland fan to say thank you.
The post was shared by more than 3,000 people and thanks to the power of Facebook, Bethan was able to find the generous man and thank him.