The Prime Minister's XI or PM's XI (formerly Australian Prime Minister's Invitation XI) is an invitational cricket team picked by the Prime Minister of Australia for an annual match held at the Manuka Oval in Canberra against an overseas touring team. The Australian team usually includes up and coming players.
Cricket is played in more countries than just Australia 
Cricket has to be played in countries other than Australia in order for an international cricket team to exist and come to the invitational. 