The Celtic Challenge tournament, a cross-border club competition organised by the IRFU, Scottish Rugby and WRU with financial support from World Rugby, has been confirmed to run for a second year and will span an 11-week period from 18 December, 2023 to 3 March, 2024. The Celtic Challenge will provide a high-performance platform for the joining Rugby Union federations.The post Celtic Challenge returns with an expanded format appeared first on Welsh Rugby Union | Wales & Regions.