Ulster and Connacht have both been drawn away to Premiership opposition in the last 16 of the Challenge Cup.

Ulster will take on a familiar opponent in the form of three-time champions Harlequins, whom they beat twice in last season's Heineken Champions Cup pool stage.

And should Ulster come through that game, they'll be away again in the last eight against either the Dragons or Northampton.

Connacht have been handed a tough draw, away to the Leicester Tigers, who were guaranteed to play at Welford Road following their 100 percent record earlier in the competition.

However, Andy Friend's side would have home advantage in the quarter finals if they can come through that test, with the winner set to face either the Ospreys of Newcastle Falcons.

Exact kickoff times are yet to be confirmed, with the round of 16 to be played on the weekend of April 4/5/6, while the quarter finals will take place the following weekend.

Challenge Cup round of 16

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 Warriors

Challenge Cup quarter finals

Montpellier or Glasgow Warriors v Benetton or Agen

Dragons or Northampton Saints v Harlequins or Ulster

Zebre or Cardiff Blues v London Irish or Cardiff Blues

Leicester Tigers or Connacht v Ospreys or Newcastle Falcons

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