be careful about adding any players from your current league because they can play with you friendly match before your matches with them when you are offline .
and don't expect that they will cheers for you ... many players depends on winning while they are offline and they already win always or most times and they are happy for this.
they insist to be offline while they can be online ... And according to the game rules : when you are online this gives you more possession and more chances to win but this not always happen.