Blatter's press conference, his first appearance since the removal of FIFA secretary general Jerome Valcke, will follow a two-day executive committee meeting where the seemingly-endless scandals at world football's sleaze-tainted governing body are on the agenda.
Since the executive committee last met, much of the news surrounding FIFA has been less than positive.
On Wednesday, the Swiss justice ministry approved the extradition to the US of Rafael Esquivel, a Venezuelan ex-FIFA official who was among those arrested in a dawn raid in Zurich in May.
Last week also saw Valcke's sacking on allegations that he participated in a massive black market ticket-selling scheme surrounding the 2014 World Cup.
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Valcke fiercely denies the allegations and has vowed to fight them.
Three days before Valcke was dismissed, US Attorney General Loretta Lynch said her sweeping investigation into decades of graft at FIFA was expanding and was likely to lead to more people being charged.
It was Lynch who uncorked the crisis at FIFA in May, when her office unsealed indictments against 14 people - nine football officials and five sports marketing executives - accused of involvement in a bribery scandal worth more than USD 150 million (134 million euros) since 1991.