Many thanks for your reply. I understand how that works and surely don't think I'll play with 7 players. But I don't know how he can make a list of 1st team with only 7 players and put the rest of his team in the reserve and subs list? In my case, I find NO way!!! From my understanding, only players in the subs list can be selected during the game, reserves are untouched. I am wrong?

PS: yes, I found the number of players in his reserves is much bigger than the one in subs (5 and 2 respectively)!