Montpellier fly-half Francois Steyn has lost his appeal against the four-match ban handed over to him by the European Professional Club Rugby (EPCR) organisers.
The incident happened during the European Champions Cup encounter against Leinster at RDS Arena on 13th January where he was sent-off in the 26th minute following a dangerous tackle on his counterpart Johnny Sexton for which he was suspended.
However, the 29-year-old went on to appeal against the suspension following which he was presented before a three-man disciplinary panel on Wednesday.
A statement released by EPCR said: "At last month's disciplinary hearing, the decision to send Steyn off was upheld as it was determined that he had committed a dangerous tackle on the Leinster outside-half, Johnny Sexton, which resulted in reckless contact with the head in contravention of Law 10.4 (e) dangerous tackling.
"To date, Steyn has been suspended for Montpellier's Champions Cup round six match against Northampton Saints, and for the TOP 14 match against Castres Olympique.
"He will remain suspended for the Top 14 matches against Toulouse and Lyon, and will be free to play on Monday, March 6."
Steyn has played 53 Tests for Springboks with his last appearance coming in September 2012 against New Zealand in Dunedin.