Copy from gotfrag:

Since green is going to be away for a week July 4 (Sunday to Sunday) and the fact that he can't play sometimes we are looking for a solid roamer backup that can fill his role pretty decent. You will get plenty of play time especially the week that he is gone. You'll also have the ability to play in XPL matches.

edit: XPL died.

http://steamcommunity.com/id/tragic886