Cardiff Blues kept their slim Champions Cup hopes alive with a 52-20 demolition of Benetton Treviso.
Ospreys have signed Wales international centre Cory Allen as a replacement for the departing Josh Matavesi.
Cardiff Blues have confirmed the signing of second row Damian Welch ahead of the 2017/18 season.
Connacht recovered from a 13-point deficit to snatch a 19-13 triumph at Cardiff Blues in the Guinness PRO12.
The final round of the Anglo-Welsh Cup pool stages continued as Gloucester, Worcester and Newcastle all secured wins.
Laurence Pearce scored twice as Sale moved to the top of Pool 2 in the Anglo-Welsh Cup with a 41-3 win over Cardiff Blues.
Munster will face Toulouse in the Champions Cup quarter-finals on April 1, with defending champions Saracens hosting Glasgow on April 2.
After a frantic final round of Champions and Challenge Cup fixtures, the 2016/2017 quarter-finals have been announced.
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