Scottish officials will be in charge of two of the United Rugby Championship quarter-finals this weekend, while an all-Irish team will be in charge of Glasgow Warriors' last eight clash.
The quarter-finals begin with Munster, who topped the table after the regular season, hosting Ospreys at Thomond Park on Friday night.
Hollie Davidson will take charge of that match, with Italian pair Andrea Piardi and Gianluca Gnecchi her assistants, and Scotland's Andrew McMenemy the television match official (TMO) in Cork.
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When the Bulls welcome Benetton - who earned a last eight spot after their drubbing of Edinburgh on Saturday - Scotland's Mike Adamson will be the man in the middle.
His fellow countryman Sam Grove-White one of the assistants alongside Wales' Adam Jones. Ben Whitehouse, who refereed Edinburgh's defeat to Benetton, is the TMO for the match in Pretoria.
And Glasgow's clash with Stormers at Scotstoun will be presided over by Chris Busby as part of an all-Irish team.
His assistants will be Frank Murphy and Peter Martin, the man who took charge of Glasgow's win over Zebre last weekend, while Mark Patton is the TMO.
The other quarter-final between Leinster and Ulster at the Aviva Stadium will see Andrew Brace with the whistle, with Wales' Craig Evans and Ireland's Eoghan Cross on the touchlines and Brian MacNeice the TMO.
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