Week 21 of the Pro 14 season is a special derby round which sees all matches exclusively being played between teams from the same union.
In Wales it is time for the annual Judgement Day. The national stadium, the Millennium Stadium will play host to a double-header with the Dragons vs Scarlets, and Cardiff Blues vs Ospreys. Involved will be Hanno Dirksen, a former USA age-grade representative. He starts on the left wing for the Ospreys.
In Parma, Italy Zebre will have home advantage against Benetton Treviso. Named on the bench for Zebre is Nicolas De Battista. The Argentine center is into his final month wearing Zebre colors before returning to England to his former home of the Cornish Pirates.
In Scotland Tennessee speedster Tommy Seymour will start for the Glasgow Warriors against Edinburgh. Seymour has 50 caps for Scotland whom he qualifies for via his mother.