document: The 34-year-old South Africa international was sent off in the first half of Saturday's victory over Gloucester for a punch on Nick Wood.
  Brits pleaded guilty to the charge at a Rugby Football Union disciplinary hearing on Tuesday.
  He will miss matches against Sale, Northampton and London Irish and will be available to play again on 15 March.
summary: Saracens hooker Schalk Brits has been banned for three weeks after admitting a charge of striking an opponent.