FIFA have confirmed that trials of a fourth substitute will be undertaken an several tournaments in 2016 including the Rio 2016 Olympic Games and the FIFA U-20 Women’s World Cup Papua New Guinea.

The International Football Association Board (IFAB) announced overnight that coaches will be able to use a fourth substitute in extra time.

"The FIFA Executive Committee agreed for such experiments to be conducted this year at the Olympic Football Tournaments, the FIFA U-20 Women's World Cup Papua New Guinea and the FIFA Club World Cup Japan," FIFA confirmed via media release.

"Following the recent decision by The IFAB to allow experimentation with a fourth substitution in extra time, the FIFA Executive Committee agreed for such experiments to be conducted this year at the Olympic Football Tournaments, the FIFA U-20 Women’s World Cup Papua New Guinea and the FIFA Club World Cup Japan."

The aim of the experiment will be to see whether there is player welfare benefit or whether the fourth substitute is used tactically and the impact of the additional substitute (up to a third of a team) on a match.

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Friday also so the confirmation of the women's football calendar for 2017 with 8 FIFA International Dates available for international friendlies.

While it is an "off" year in terms of major tournaments, Australia will still see some Matildas action following the recent announcement by the FFA and the NSW Government.