Football clubs in England wore poppies on their shirts on the weekend ahead of Remembrance Day.
The day is dedicated to remembering those who lost their lives during time of conflict.
But there were a few examples of players that decided against wearing the symbol.
The most high profile name was Nemanja Matic, who did not wear a poppy for Man United's win against Bournemouth on Saturday.
This caused confusion among football fans, with some even questioning Matic's decision.
It was previously not known why Matic decided against wearing the poppy, although the Daily Mail reported that it was down to 'personal reasons'.
And now Matic has confirmed exactly why he made the decision in an Instagram post.
"I recognise fully why people wear poppies, I totally respect everyone’s right to do so and I have total sympathy for anyone who has lost loved ones due to conflict," he wrote.
"However, for me it is only a reminder of an attack that I felt personally as a young, frightened 12-year old boy living in Vrelo, as my country was devastated by the bombing of Serbia in 1999.
"Whilst I have done so previously, on reflection I now don't feel it is right for me to wear the poppy on my shirt.
"I do not want to undermine the poppy as a symbol of pride within Britain or offend anyone, however, we are all a product of our own upbringing and this is a personal choice for the reasons outlined.
"I hope everyone understands my reasons now that I have explained them and I can concentrate on helping the team in the games that lie ahead."
So there you have it.