So the ERC have confirmed the four possible semi-final venues. Should Saracens win then they'll play the winners of Gloucester/Munster at Coventry's Ricoh Arena. If the Ospreys get the win then it'll be the Millennium Stadium for them. A trip to Twickenham awaits Toulouse/Blues if Irish get the win on Saturday. While Montpellier's Stade de la Mosson could host its first HEC game should Perpignan get the job done at Reading.