Johan Deysel of Namibia has been suspended for at least five matches for the tackle on French captain Antoine Dupont.
The head-on dive resulted in Dupont suffering a broken cheekbone.
World Rugby said Deysel was initially banned for 12 matches, but this was halved due to mitigating factors. The ban was further reduced as Deysel was enrolled in a coach intervention programme.
During his hearing before the independent disciplinary committee, Deysel (31) said he accepted that the tackle on Dupont warranted a red card.
According to the committee, the offense was very serious, considering the degree of recklessness involved in the offence, the vulnerability of the other player and the resulting injury.
Deysel’s World Cup is over, but France’s team and its supporters are hopeful that Dupont will be able to play again.
Dupont underwent surgery following the incident and France are hoping he will be available for the quarter-finals, which are scheduled for the weekend of October 14-15.
“The operation went well, he is resting. He will train again on Sunday,” said William Servat, France’s forward coach.
France’s next game is against Italy on October 7.
