Saturday's Challenge Cup team news

World Cup winner Ben Franks could make his London Irish debut in Saturday's Challenge Cup trip to Grenoble.

The New Zealand prop has been named on the bench alongside Samoa captain Ofisa Treviranus as the Exiles seek a second successive victory over French opposition, having thumped Agen in last weekend's Pool 5 opener.

Connacht make 13 changes to the team that won in Siberia for their home fixture with Brive, Ireland international Robbie Henshaw partnering Bundee Aki at centre, while Sam Betty will make his 100th appearance for Worcester when they travel to Zebre.

Zebre Rugby v Worcester Warriors (2pm GMT)

Zebre: 15 Guglielmo Palazzani, 14 Dion Berryman, 13 Giulio Bisegni, 12 Gonzalo Garcia, 11 Leonardo Sarto, 10 Carlo Canna, 9 Marcello Violi; 1 Andrea Lovotti, 2 Andrea Manici, 3 Dario Chistolini, 4 Quintin Geldenhuys, 5 George Biagi (c), 6 Jacopo Sarto, 7 Johan Meyer, 8 Dries van Schalkwyk.

Replacements: 16 Oliviero Fabiani, 17 Andrea de Marchi, 18 Pietro Ceccarelli, 19 Valerio Bernabo, 20 Paul Derbyshire, 21 Luke Burgess, 22 Tommaso Boni, 23 Edoardo Padovani.

Worcester: 15 Ben Howard, 14 Perry Humphreys, 13 Max Stelling, 12 Alex Grove, 11 Dean Hammond, 10 Ryan Lamb, 9 JB Bruzulier (c); 1 Ryan Bower, 2 Jaba Bregvadze, 3 Gareth Milasinovich, 4 Dan Sanderson, 5 Darren O'Shea, 6 Carl Kirwan, 7 Sam Betty, 8 Marco Mama.

Replacements: 16 Ben Sowrey, 17 Derrick Appiah, 18 Joe Rees, 19 Darren Barry, 20 Matt Cox, 21 Charlie Mulchrone, 22 Ryan Mills, 23 Tom Biggs.

Sale Sharks v Pau (2.30pm)

Sale: 15 Michael Haley, 14 Tom Brady, 13 Sam James, 12 Mark Jennings, 11 Will Addison, 10 Joe Ford, 9 Chris Cusiter; 1 Ross Harrison, 2 Tommy Taylor, 3 Brian Mujati, 4 Bryn Evans, 5 Andrei Ostrikov, 6 Magnus Lund (c), 7 TJ Ioane, 8 Vili Fihaki.

Replacements: 16 Cameron Neild, 17 James Flynn, 18 Ciaran Parker, 19 Jon Mills, 20 Josh Beaumont, 21 James Mitchell, 22 Tim Jeffers, 23 Neville Edwards.

Pau: 15 Charly Malie, 14 Sereli Bobo, 13 Jale Vatubua, 12 Watisoni Votu, 11 Elijah Niko, 10 Santiago Fernandez, 9 Thibault Daubagna; 1 Chris King, 2 Quentin Lespiaucq Brettes, 3 Giorgi Natsarashvili, 4 Claude Dry, 5 Daniel Ramsay, 6 Loic Bernad, 7 Jean Bouilhou (c), 8 James Coughlan.

Replacements: 16 Vincent Campo, 17 Jérémy Hurou, 18 Geoffrey Moise, 19 Josefa Ulago Domolailai, 20 Paddy Butler, 21 Samuel Marques, 22 Mosese Ratuvou, 23 Pierre Dupouy.

Castres Olympique v Newport Gwent Dragons (4pm GMT)

Castres: 15 Geoffrey Palis, 14 Romain Martial, 13 Thomas Combezou, 12 Romain Cabannes (c), 11 Remi Grosso, 10 Daniel Kirkpatrick, 9 Julien Seron; 1 Saimone Taumoepeau, 2 Marc-Antoine Rallier, 3 Yohan Montes, 4 Christophe Samson, 5 Victor Moreaux, 6 Piula Faasalele, 7 Alexandre Bias, 8 Johnnie Beattie.

Replacements: 16 Mathieu Bonello, 17 Mihaita Lazar, 18 Lucas Martinez, 19 Alex Tulou, 20 Theo Hannoyer, 21 Julien Dumora, 22 Remi Lamerat, 23 Antoine Dupont.

Dragons: 15 Carl Meyer, 14 Ashton Hewitt, 13 Adam Hughes, 12 Adam Warren, 11 Nick Scott, 10 Dorian Jones, 9 Sarel Pretorius; 1 Phil Price, 2 Elliot Dee, 3 Shaun Knight, 4 Matthew Screech, 5 Rynard Landman (c), 6 Nick Crosswell, 7 Ollie Griffiths, 8 Ed Jackson.

Replacements: 16 Rhys Buckley, 17 Boris Stankovich, 18 Lloyd Fairbrother, 19 Cory Hill, 20 Nic Cudd, 21 Charlie Davies, 22 Jason Tovey, 23 Ross Wardle.

Connacht Rugby v Brive (5pm)

Connacht: 15 Tiernan O'Halloran (c), 14 Rory Parata, 13 Robbie Henshaw, 12 Bundee Aki, 11 Danie Poolman, 10 Jack Carty, 9 Kieran Marmion; 1 Ronan Loughney, 2 Jason Harris-Wright, 3 Nathan White, 4 Ben Marshall, 5 Andrew Browne, 6 Eoghan Masterson, 7 Nepia Fox Matamua, 8 Eoin McKeon.

Replacements: 16 David Heffernan, 17 Conan O'Donnell, 18 Finlay Bealham, 19 Danny Qualter, 20 George Naoupu, 21 Ian Porter, 22 Craig Ronaldson, 23 Niyi Adeolokun.

Brive: 15 Romain Sola, 14 Elia Radikedike, 13 Benjamin Petre, 12 Christopher Tuatara, 11 Benito Masilevu, 10 Matthieu Ugalde, 9 Jean-Baptiste Pejoine (c); 1 Damien Lavergne, 2 Thomas Acquier, 3 Kevin Buys, 4 Johan Snyman, 5 Wilhem Steenkamp, 6 Hugues Briatte, 7 Poutasi Luafutu, 8 William Whetton.

Replacements: 16 Guillaume Ribes, 17 Goderzi Shvelidze, 18 Giorgi Jgenti, 19 Victor Lebas, 20 Said Hireche, 21 Teddy Iribaren, 22 Alfifeleti Mafi, 23 Sevanaia Galala.

Grenoble v London Irish (7.45pm GMT)

Grenoble: 15 Gio Aplon, 14 Lucas Dupont, 13 Fabrice Estebanez, 12 Nigel Hunt, 11 Daniel Kilioni, 10 Gilles Bosch, 9 Charl McLeod; 1 Fabien Barcella, 2 Arnaud Heguy, 3 Dayna Edwards, 4 Ben Hand (c), 5 Hendrik Roodt, 6 Peter Kimlin, 7 Fabien Alexandre, 8 Rory Grice.

Replacements: 16 Loick Jammes, 17 Sona Taumalolo, 18 Rossouw de Klerk, 19 Mathias Marie, 20 Steven Setephano, 21 Christophe Loustalot, 22 Clement Gelin, 23 Xavier Mignot.

London Irish: 15 Sean Maitland, 14 Alex Lewington, 13 Aseli Tikoirotuma, 12 Johnny Wililams, 11 Topsy Ojo, 10 Chris Noakes, 9 Darren Allinson; 1 Tom Court, 2 Gerard Ellis, 3 Halani Aulika, 4 Eoin Sheriff, 5 Matt Symons (c), 6 Jebb Sinclair, 7 Joe Trayfoot, 8 Luke Narraway.

Replacements: 16 Tom Cruse, 17 Tom Smallbone, 18 Ben Franks, 19 David Sisi, 20 Ofisa Treviranus, 21 Conor Gilsenan, 22 Scott Steele, 23 Theo Brophy Clews.

Sunday: Newcastle Falcons v Enisei-STM (3pm)

Newcastle: 15 Alex Tait, 14 Zach Kibirige, 13 Tom Penny, 12 Chris Harris, 11 Marcus Watson, 10 Tom Catterick, 9 Micky Young; 1 Rob Vickers, 2 George McGuigan, 3 Jon Welsh, 4 Calum Green, 5 Sean Robinson, 6 Will Welch (c), 7 Dan Temm, 8 Mark Wilson.

Replacements: 16 Scott Lawson, 17 Alex Rogers, 18 Taione Vea, 19 Will Witty, 20 Richard Mayhew, 21 Ruki Tipuna, 22 Craig Willis, 23 Adam Powell.

Enisei: 15 Iurii Kushnarev, 14 Robert Malneek, 13 David Kacharava, 12 Dmitrii Gerasimov, 11 Denis Simplikevich, 10 Ramil Gaisin, 9 Jurijs Baranovs (c); 1 Aleksandr Bezverkhov, 2 Stanislav Selskii, 3 Innokentiy Zykov, 4 Uldis Saulite, 5 Viacheslav Krasylnyk, 6 Vitalii Orlov, 7 Andrey Temnov, 8 Anton Rudoi.

Replacements: 16 Nazir Gasanov, 17 Lawrence Cleminson, 18 Evgenii Pronenko, 19 Plavel Butenko, 20 Mikhail Babaev, 21 Alexey Shcherban, 22 Igor Kurashov, 23 Dmitrii Krotov.