The Scarlets are the only Welsh side still competing in the Champions Cup.
Glenn Delaney’s side will host English outfit Sale Sharks in the round of 16 on the weekend of April 2/3/4.
Should the men from Llanelli get the better of Sale, they will meet either Gloucester or La Rochelle in the quarter-finals on the weekend of April 9/10/11.
Dragons, Cardiff Blues and Ospreys are still in with a shot of lifting the Challenge Cup.
Dean Ryan’s Dragons will host Northampton Saints in the last 16, Ospreys will face another English side in Newcastle Falcons at the Liberty Stadium, while Cardiff Blues will travel to London Irish.
Four Anglo-Welsh ties for the regions should whet the appetite for supporters.
If the Dragons beat Northampton, they will face either Harlequins or Ulster in the Challenge Cup quarter-finals.
For the Ospreys it will be either Leicester Tigers or Connacht should Toby Booth’s men clip the wings of the Falcons.
If Cardiff Blues beat London Irish, they will travel to either Zebre or Bath.
Champions Cup last-16 draw: Matches to be played on April 2/3/4
Munster v Toulouse
Gloucester v La Rochelle
Wasps v Clermont Auvergne
Exeter Chiefs v Lyon
Leinster v Toulon
Bordeuax-Begles v Bristol Bears
Racing v Edinburgh
Scarlets v Sale Sharks
Champions Cup quarter-final draw: Matches to be played on April 9/10/11
Exeter Chiefs/Lyon v Leinster/Toulon
Wasps/Clermont Auvergne v Munster/Toulouse
Gloucester/La Rochelle v Scarlets/Sale Sharks
Bordeuax-Begles/Bristol Bears v Racing 92/Edinburgh
Challenge Cup last-16 draw: Matches to be played on April 2/3/4
Dragons v Northampton Saints
Ospreys v Newcastle Falcons
London Irish v Cardiff Blues
Harlequins v Ulster
Benetton v Agen
Zebre v Bath
Leicester Tigers v Connacht
Montpellier v Glasgow
Challenge Cup quarter-final draw: Matches to be played on April 9/10/11
Montpellier/Glasgow Warriors v Benetton/Agen
Dragons/Northampton Saints v Harlequins/Ulster
Zebre/Bath v London Irish/Cardiff Blues
Leicester Tigers/Connacht v Ospreys/Newcastle Falcons
