**There are two rearranged derby matches in the United Rugby Championship this weekend as well as a blockbuster Heineken Champions Cup semi-final.** The Dragons and Cardiff collide in Newport on Friday night before Benetton host Zebre Parma on Saturday. Leinster and Toulouse, the two most successful European teams, also clash in a crunch last-four tie at the Aviva Stadium on Saturday. There has also been much movement on the player front across the URC. Here are five things to know ahead of the weekend.
