The 40-year-old Italian international has said he intends to hang up his gloves at the end of the season, but as yet has not made an official announcement.
Juventus sealed a seventh straight Serie A title on Sunday, to complete a league and cup double for the fourth year in a row.
The club said in a statement without giving further details that the press conference would take place at the Allianz Stadium at 11.30 local time (0930 GMT). Buffon, who has won nine Serie A titles with the club since joining in 2001 from Parma, is expected to play his final game on Saturday against Verona in Turin.
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