Things are heating up as we countdown to the end of the regular season with the race for playoff spots coming to a head.
The Round 16 action is headlined by two key derby matches in Rebels-Waratahs on Friday and Chiefs-Crusaders Saturday, while a key inter-conference match plays out between Sharks-Hurricanes.
(Note: All times are Australian Eastern Standard Time)
Jump ahead to a particular game.
Blues vs. Bulls | Rebels vs. Waratahs | Sunwolves vs. Brumbies | Chiefs vs. Crusaders | Reds vs. Jaguares | Sharks vs. Hurricanes | Lions vs. Stormers
Friday, May 31
Blues vs. Bulls, 5:35pm, Eden Park, Auckland
Blues: Melani Nanai, Caleb Clarke, TJ Faiane, Ma'a Nonu, Reiko Ioane, Harry Plummer, Jonathan Ruru, Akira Ioane Blake Gibson, Tom Robinson, Scott Scrafton, Patrick Tuipulotu, Ofa Tuungafasi, James Parsons, Alex Hogman. Replacements: Leni Apusai, Lua Li, Marcel Renata, Gerard Cowley-Tuioti, Hoskins Sotutu, Augustine Pulu, Otere Black, Tanielu Tele'a.
Bulls: Warrick Gelant, Cornal Hendricks, Johnny Kotze, Burger Odendaal (captain), Rosko Spekman, Manie Libbok, Ivan van Zyl, Paul Schoeman, Hanro Liebenberg, Marco van Staden, R.G. Snyman, Jason Jenkins, Trevor Nyakane, Schalk Brits, Lizo Gqoboka Replacements: Jaco Visagie, Simphiwe Matanzima, Wiehahn Herbst, Jannes Kirsten, Ruan Steenkamp, Andre Warner, J.T. Jackson, Divan Rossouw .
Rebels vs. Waratahs, 7:45pm, AAMI Park, Melbourne
Rebels: Dan Haylett-Petty, Jack Maddocks, Reece Hodge, Matt To'omua, Marika Koroibete, Quade Cooper, Will Genia, Isi Naisarani, Richard Hardwick, Luke Jones, Adam Coleman, Mat Philip, Jermaine Ainsley, Anaru Rangi, Tetera Faullkner. Replacements: Hugh Roach, Matt Gibbon, Sam Talakai, Ross Haylett-Petty, Angus Cottrell, Michael Ruru, Billy Meakes, Tom English.
Waratahs: Kurtley Beale, Alex Newsome, Adam Ashley-Cooper, Lalakai Foketi, Curtis Rona, Bernard Foley, Nick Phipps, Michael Wells, Michael Hooper, Lachlan Swinton, Rob Simmons, Ned Hanigan, Sekope Kepu, Damien Fitzpatrick, Tom Robertson. Replacements: Andrew Tuala, Harry Johnson-Holmes, Chris Talakai, Jed Holloway, Will Miller, Jake Gordon, Mack Mason, Cam Clark.
Saturday, June 1
Sunwolves vs Brumbies, 3:15pm, Prince Chichibu Stadium, Tokyo
Sunwolves: Semisi Masirewa, Gerhard van den Heever, Jason Emery, Phil Burleigh, Hosea Saumaki, Hayden Parker, Jamie Booth, Ben Gunter, Dan Pryor, Yoshitaka Tokunaga, Tom Rowe, Mark Abbott, Takuma Asahara, Nathan Vella, Alex Woonton. Replacements: Jaba Bregvadze, Masatake Mikami, Conan O'Donnell, Yuya Odo, Kara Pryor, Keisuke Uchida, Takuya Yamasawa, Timothy Lafaele.
Brumbies: Tom Banks, Henry Speight, Tevita Kuridrani, Irae Simone, Toni Pulu, Christian Lealiifano, Joe Powell, Pete Samu, Jahrome Brown, Tom Cusack, Sam Carter, Rory Arnold, Allan Alaalatoa, Folau Fainga'a, James Slipper. Replacements: Connal McInerney, Scott Sio, Leslie Leuluaialii-Makin, Darcy Swain, Lachlan McCaffrey, Rob Valetini, Matt Lucas, Tom Wright.
Chiefs vs. Crusaders, 5.35pm, ANZ National Stadium, Suva
Chiefs: Solomon Alaimalo, Shaun Stevenson, Alex Nankivell, Anton Lienert-Brown, Sean Wainui, Jack Debreczeni, Brad Weber, Pita Gus Sowakula, Sam Cane (captain), Lachlan Boshier, Tyler Ardron, Jesse Parete, Nepo Laulala, Samisoni Taukei'aho, Atu Moli. Replacements: Bradley Slater, Aidan Ross, Angus Ta'avao, Daymon Leasuasu, Mitchell Jacobson, Te Toiroa Tahuriorangi, Marty McKenzie, Tumua Manu.
Crusaders: David Havili, Sevu Reece, Jack Goodhue, Ryan Crotty, Braydon Ennor, Richie Mo'unga, Mitchell Drummond, Kieran Read, Billy Harmon, Whetukamokamo Douglas, Sam Whitelock, Scott Barrett, Michael Alaalatoa, Andrew Makalio, Joe Moody. Replacements: Ben Funnell, Isi Tu'ungafasi, George Bower, Mitchell Dunshea, Jordan Taufua, Bryn Hall, Mitchell Hunt, George Bridge.
Reds vs. Jaguares, 7.45pm, Suncorp Stadium, Brisbane
Reds: Bryce Hegarty, Jock Campbell, Chris Feauai-Sautia, Samu Kerevi, Filipo Daugunu, Matt McGahan, Tate McDermott, Scott Higginbotham, Liam Wright, Angus Scott-Young, Lukhan Salakaia-Loto, Angus Blyth, Taniela Tupou, Brandon Paenga-Amosa, JP Smith. Replacements: Alex Mafi, Ruan Smith, Gav Luka, Harry Hockings, Adam Korczyk, Scott Malolua, Duncan Paia'aua, Hamish Stewart.
Jaguares: Juan Cruz Mallía, Santiago Carreras, Matías Moroni, Matías Orlando (captain), Ramiro Moyano, Joaquín Díaz Bonilla, Felipe Ezcurra, Javier Ortega Desio, Tomás Lezana, Guido Petti, Tomás Lavanini, Lucas Paulos, Lucio Sordoni, Agustín Creevy, Nahiel Tetaz Chaparro. Replacements: Julián Montoya, Mayco Vivas, Enrique Pieretto, Marcos Kremer, Juan Manuel Leguizamón, Pablo Matera, Tomás Cubelli, Jerónimo de le Fuente..
Sharks vs. Hurricanes, Jonsson Kings Park, Durban
Sharks: . Aphelele Fassi, Sbu Nkosi, Lukhanyo Am, Andre Esterhuizen, Makazole Mapimpi, Curwin Bosch, Louis Schreuder (captain), Daniel du Preez*, Jean-Luc du Preez, Jacques Vermeulen, Ruan Botha, Ruben van Heerden, Coenie Oosthuizen, Kerron van Vuuren, Mzamo Majola Replacements: Craig Burden / Cullen Collopy, Juan Schoeman, Thomas du Toit, Hyron Andrews, Tyler Paul, Cameron Wright, Robert du Preez, Kobus van Wyk.
Hurricanes: Jordie Barrett, Wes Goosen, Matt Proctor, Ngani Laumape, Ben Lam, Beauden Barrett, TJ Perenara, Reed Prinsep, Ardie Savea, Vaea Fifita, Kane Le'aupepe, James Blackwell, Jeff To'omaga-Allen, Asafo Aumua, Toby Smith. Replacements: Dane Coles, Fraser Armstrong, Ross Geldenhuys, Isaia Walker-Leawere, Du'Plessis Kirifi, Gareth Evans, Richard Judd, James Marshall
Sunday, June 2
Lions vs. Stormers, 1.05am, Ellis Park, Johannesburg
Lions: Andries Coetzee, Courtnall Skosan, Lionel Mapoe, Harold Vorster, Aphiwe Dyantyi, Shaun Reynolds, Ross Cronje, Kwagga Smith, Vincent Tshituka, Cyle Brink, Marvin Orie, Stephan Lewies, Carlu Sadie, Malcolm Marx (captain), Dylan Smith. Replacements: Jan-Henning Campher, Sti Sithole, Johannes Jonker, Reinhard Nothnagel, Marnus Schoeman, Hacjivah Dayimani, Nic Groom, Tyrone Green.
Stormers: Damian Willemse, Seabelo Senatla, J.J. Engelbrecht, Damian de Allende, Dillyn Leyds, Josh Stander, Herschel Jantjies, Sikhumbuzo Notshe, Johan du Toit, Jaco Coetzee, Cobus Wiese, Eben Etzebeth, Wilco Louw, Scarra Ntubeni, Steven Kitshoff (captain). Replacements: Chad Solomon, Corne Fourie, Frans Malherbe, Ernst van Rhyn, Marno Redelinghuys (Justin Phillips, Jean-Luc du Plessis, Dan Kriel.
BYE: Highlanders