**There will be more than just Guinness PRO14 points at stake when Munster face Leinster in Limerick on Saturday.**\n\nWith the Guinness Six Nations on the horizon, several players will be keen to prove themselves against their opposite number and here we look at some of the key battles...\n\n**CJ Stander v Caelan Doris**\n\nA mighty tussle awaits in the back row where rival Ireland number eights collide. Stander has been the long-term holder of the jersey for Ireland, making his debut as a flanker in 2016 before switching to the middle a year later. \n\nIt was there that the South African-born Lion's ball-carrying prowess truly came to the fore, but with the emergence of Doris, Ireland boss Andy Farrell has restored him to the number six jersey. \n\nDoris made his debut in last year's Six Nations and made a strong start to life as a Test player, overcoming the setback of a head injury to regain his place in the side. By the Autumn Nations Cup he was flying, winning two man-of-the-match awards and starting the last three games at number eight.