With derby day victories under their belts, Cardiff Blues and Dragons will both be looking to lengthen their festive joy in Round 9 of the Guinness PRO14. The Blues began the season with victory over Isuzu Southern Kings but then went on a run of four losses in a row. However, they have recovered with three victories on the spin against Toyota Cheetahs, Benetton Rugby and the hard-fought win against Ospreys. Dragons ended their recent run of poor form with a last-gasp triumph against Scarlets, thanks to a Sam Davies drop goal. A close encounter will be expected though, as the Blues claimed a 19-16 victory in December 2018. Kick-off: Cardiff Arms Park | KO 15:00 (UK), Thursday 26 December How to watch: | Live on S4C, Premier Sports, DAZN, pro14.tv Referee: Nigel Owens (WRU, 181st competition game) AR1: Ben Whitehouse (WRU) AR2: Adam Jones (WRU) TMO: Sean Brickell (WRU)