Defending champions Munster will meet either Leicester or Stade Francais should they reach the semi-finals of this year's Heineken European Cup.
Declan Kidney's side must first overcome the challenge of Llanelli in the last eight but could be afforded the opportunity of avenging last weekend's home defeat at the hands of Leicester if they are successful in Wales.
In the other semi-final, tournament favourites Biarritz or former winners Northampton lie in wait for Leinster, assuming the Irish province can win away in Wasps.
The draw for the 12th Heineken Cup semi-finals was made at Twickenham this afternoon. The completed line-up will be confirmed after the quarter-finals, which will be played on the weekend of March 30th, 31st and April 1st.
The semi-finals will be held on the weekend of April 20th-22nd.
Quarter-finals(March 30th-April 1st)
Biarritz v Northampton
Llanelli v Munster
Leicester v Stade Francais
Wasps v Leinster
Semi-finals(April 20th-22nd)
Leicester / Stade Francais v Llanelli / Munster
Biarritz / Northampton v Wasps / Leinster