The suggestion is next. I would like to see on the
players main page his International matches he played for the U21 and NT.

Or just add the text from the end you see on the "Player History" page, like this

So when we click on the player we could faster get a conclusion how long he play for the NT, does he even play, how many matches he played and etc.
I would like too that the players competitive matches and scrimmages shown as one (like on the 1. image), so just "Matches for NT" and "Matches for U21".
Those 2 rows are not big and you have a lot of space to put it on the players main page, it would make NT and U21 lets say more attractive.
What do you think about it? Would you like this little addition?
Best regards.
This is where we hold them!