Costello makes seven Munster changes for Cardiff clash as key quartet return 

Michael Milne will make his Munster debut on Friday night.

Munster full-back Mike Haley is set to make his return from injury. Pic: Ben Brady/Inpho

Munster make seven changes to the side beaten at home by the Bulls last time out as they bid to save their season at Cardiff on Friday night.

Michael Milne is set for a debut at loosehead prop while Mike Haley, Calvin Nash, Craig Casey and Gavin Coombes all return from injuries or illness for the must-win trip to the Arms Park against a team also vying for a top-eight finish and a place in the URC play-offs, beginning at the end of next month.