Anthony Foley is a man on a mission this weekend, desperate for his side to put in a performance and secure a top-six finish in this season’s Guinness PRO12. Munster need two points from this game to secure Champions Cup rugby next season, anything less and they could open the door for Ospreys. The Munstermen's last six games have been won by the home side on the day, whilst they have not been defeated in Limerick since December 27. For the first time this season Foley names an unchanged side as Munster bid to secure Champions Cup qualification in Round 22. The game marks a milestone in the career of Dave Kilcoyne who will win his 100th cap for the province when starting alongside Niall Scannell and Stephen Archer in the front row. Dave Foley and Billy Holland continue in the second row, with the back row trio of Dave O'Callaghan, Tommy O'Donnell and captain CJ Stander – this week historically named IRUPA Players' Player of the Year and Supporters' Player of the Year – again completing the pack. Conor Murray and Johnny Holland take charge at half-back with Rory Scannell in line to make his final appearance as an academy player. Keith Earls and Andrew Conway are again named on the wings with this season's joint top try scorer Simon Zebo remaining at full-back. "We have to win,” said Foley. “We know that. They have to win to catch Ulster. Ospreys have to win to catch us and Ulster have to win their game so within those two games there's a lot at stake. "We're all very conscious of it but we have to keep an eye on Edinburgh as well, so it's important that we get our job done and if we get our job done then well, it's in our hands. "It's in our control – you fight hard to get stuff in your control and it's about us going out now and delivering a performance that can win the game." Scarlets require as many points as possible to give themselves a shot at a play-off spot for the first time since season 2013 – their Judgement Day victory over Newport Gwent Dragons ended a two-game losing streak, with their last four encounters all being won by the away side. Wayne Pivac’s side have lost just once to Munster in their last four fixtures against the Irish Province – at Thomond Park in round 6 last year, but the Welshmen have not won in Limerick since September 2003. Pivac has been forced to make three changes to last week's starting line-up due to injuries, with Gareth Owen, Peter Edwards and Steff Hughes drafted into the starting XV to replace Michael Collins, Samson Lee and Scott Williams. Pivac said: "We've talked about the scenarios, in relation to our match and Ulster's match with Ospreys. We're going with focus of a quarter final, it's a must win match if we're to progress without worrying too much about other matches. "We'll take the same approach as last week, get out there and focus on the performance and everything else should fall in to place,” he said. "We talked about last year's top four, we've played three of them away and won all three. I think this game is slightly different from those – there's no more next week or second chances. We all know what we have to do which adds a little bit more pressure. "Certainly, we have got the confidence of going, in particular to Ireland, Ulster was one of our best performances this season. It's going to require another massive effort.” At Thomond Park, 3pm. Referee: Nigel Owens (WRU, 135th competition game) Live on S4C To buy tickets for the Guinness PRO12 Grand Final click here. Also follow us on Facebook, join the conversation on Twitter, sign up to our YouTube channel for extensive match highlights and sign up for our newsletter for regular updates on the Guinness PRO12.