Bentancur has been notified by his agent about a possible seven-game suspension from the FA, but the sanction has not been officially confirmed by the governing body or his club.
Speaking on international duty with Uruguay, Bentancur said: "My agent rang me and told me he had been notified that this was the sanction.
"So far, the club haven't contacted me. I already knew more or less where it was going.
"Now the sanction is out, I want to be calm here with the national team. Then we'll see when it's time to go back."
The FA announced in September that it had charged Bentancur with misconduct in relation to its rules on abuse and insults and those that include references to race or ethnic origin.
Bentancur insisted it was a "very bad joke" after he said Son and his cousins "all look the same" in an interview with Uruguayan national TV.
Son said they remained "brothers" and "nothing had changed" after Bentancur immediately apologised to him, admitting he had "made a mistake".
The FA will give an update on the Bentancur case in due course.
Neither the FA nor Tottenham commented when contacted by News.
Uruguay face Colombia on Saturday and Brazil next Wednesday in two World Cup Qualifiers.
Tottenham travel to Manchester City next on Saturday November 23.
November 23: Manchester City (a) - live on
December 1: Fulham (h)
December 5: Bournemouth (a)
December 8: Chelsea (h) - live on
December 15: Southampton (a)
December 19: Manchester United (h) - live on , Carabao Cup quarter-final