I dunno about the league, but at some cases imp players can get an invite when the fight has already started if there is a free spot in the raid after someone leaves.
P.S. seems like league players can get an invite the same way too, happened yesterday.
Blindoz
Blindos
Blintrez
And so on..
This post has been edited 1 times, last edit by "Luka" (30.04.2014, 06:34)