Hello,
Being a new player and not knowing exactly where to make my request, I'm posting this here.
I accepted 2 friendly matches on 07/10 and 09/10 against mamminak#631889 as I had nothing on these dates at the time. Since then, new teams have joined my league and matches have automatically been added to my calendar. These are on the same date as my friendlies. I'd like to be able to request the cancellation of these friendlies but I don't know how.
I am at your disposal and thank you in advance.

Friendly matches deleted.
In such cases, simply contact an administrator with a valid reason (like yours).

Thank you very much! I'll do the same next time if a problem like this arises again.