The Champions Cup reaches the quarterfinal stages with five former champions into the final eight. We take a look at the team news ahead of this weekend's games.
Leinster vs. Wasps
Aviva Stadium, Saturday 15:15 (BST)
Leinster are bolstered by a number of Ireland internationals with Robbie Henshaw, Jonathan Sexton, Sean O'Brien and Tadhg Furlong all starting.
Wasps welcome back captain Joe Launchbury, Elliot Daly and Nathan Hughes while Willie le Roux is passed fit to start on the wing.
Leinster: Carbery, Byrne, Ringrose, Henshaw, Nacewa, Sexton, McGrath; McGrath, Strauss, Furlong, Toner, Triggs, Leavy, O'Brien, Conan
Replacements: Tracy, Healy, Bent, Molony, Van der Flier, Gibson-Park, McFadden, Kirchner
Wasps: Beale, Wade, Daly, Gopperth, Le Roux, Cipriani, Robson; Mullan, Taylor, Cooper-Woolley, Launchbury (captain), Myall, Haskell, Young, Hughes
Replacements: Johnson, McIntyre, Moore, Symons, Rieder, Simpson, Leiua, Bassett
Munster vs Toulouse
Thomond Park, Saturday 17:45 (BST)
Munster recall their Ireland contingent with Donnacha Ryan, CJ Stander, Conor Murray, Keith Earls and Simon Zebo all starting their first games for the province since January.
Sébastien Bézy is passed fit to start but there is no Gillian Galan for Toulouse. Thierry Dusautoir starts in the back-row while they opt for a 6-2 split on the bench.
Munster: Simon Zebo; Darren Sweetnam, Jaco Taute, Rory Scannell, Keith Earls; Tyler Bleyendaal, Conor Murray; Dave Kilcoyne, Niall Scannell, John Ryan, Donnacha Ryan, Billy Holland, Peter O'Mahony, Tommy O'Donnell, CJ Stander
Replacements: Rhys Marshall, James Cronin, Stephen Archer, Dave O'Callaghan, Jack O'Donoghue, Duncan Williams, Francis Saili, Andrew Conway
Toulouse: Medard, Huget, Fritz, Fickou, Perez, Doussain, Bezy; Baille, Ghiraldini, Johnston, Gray, Maestri, Dusautoir, Camara, Cros
Replacements: Marchand, Steenkamp, Aldegheri, Gray, Faasalele, Tekori, McAlister, Bonneval
Saracens vs. Glasgow Warriors
Allianz Park, Sunday 13:00 (BST)
Saracens' starting line up is unchanged from the side that smashed Bath with Ben Spencer joining the replacements. 0
Glasgow Warriors have their Scotland contingent fit and raring to go with the likes of Stuart Hogg, Tommy Seymour, Finn Russell, Jonny Gray and Zander Fagerson all starting.
Saracens: Goode, Ashton, Bosch, Barritt, Maitland, Farrell, Wigglesworth; Vunipola. George, Figallo, Itoje, Hamilton, Rhodes, Wray, Vunipola
Replacements: Brits, Lamositele, Koch, Brown, Conlon, Spencer, Lozowski, Taylor
Glasgow Warriors: Hogg, Seymour, Dunbar, Horne, Jones, Russell, Pyrgos; Reid, Brown, Fagerson, Alainu'uese, Gray, Harley, Wilson, Ashe
Replacements: Flynn, Allan, Puafisi, Peterson, Fusaro, Price, Grigg, Hughes
Clermont Auvergne vs. Toulon
Stade Marcel-Michelin, Sunday 15.15 (BST)
Clermont Auvergne name Nick Abendanon on the wing with their pack bolstered by a number of internationals.
Toulon are without Matt Giteau and Mamuka Gorgodze but bar those notable absentees, are at full strength.
Clermont: Scott Spedding; Noa Nakaitaci, Aurélien Rougerie, Remi Lamerat, Nick Abendanon; Camille Lopez, Morgan Parra; Raphael Chaume, Benjamin Kayser, Davit Zirakashvili, Arthur Iturria, Sébastien Vahaamahina, Damien Chouly, Peceli Yato, Fritz Lee
Replacements: John Ulugia, Etienne Falgoux, Aaron Jarvis, Flip Van Der Merwe, Judicaël Cancoriet, Ludovic Radosavljevic , Pato Fernandez, Damien Penaud
RC Toulon: Leigh Halfpenny; Drew Mitchell, Mathieu Bastareaud, Ma'a Nonu, Bryan Habana; Francois Trinh-Duc, Eric Escande; Laurent Delboulbès, Guilhem Guirado, Levan Chilachava, Juandre Kruger, Romain Taofifenua, Juan Smith, Liam Gill, Duane Vermeulen
Replacements: Anthony Etrillard, Florian Fresia, Marcel Van Der Merwe, Juan Fernandez Lobbe, Anthony Belleau, Josua Tuisova, Sebastien Tillous-Borde, Samu Manoa