Johnny Sexton will return to Leinster's starting line-up for tomorrow's Heineken Champions Cup Pool A meeting with Bath at The Rec.

The captain made his comeback from injury in last Sunday's hammering of Montpellier at the RDS, and comes into the starting team among four changes from the Round 3 victory.

Sexton partners Luke McGrath in the half-backs, with Jamison Gibson-Park on the bench.

Tadhg Furlong and James Ryan both miss out, having picked up knocks in the last week, although neither are believed to be doubtful for the start of the Six Nations.

Michael Ala'alatoa comes in to take the place of Furlong alongside Andrew Porter and Ronan Kelleher in the front row, while Josh Murphy continues in the place of Ryan, partnering Ross Molony at lock.

The back row is unchanged from last week, with Jack Conan at number eight, in between flankers Josh van der Flier and Caelan Doris.

Robbie Henshaw returns to the centre alongside Garry Ringrose, while Jordan Larmour is passed fit after picking up a dead leg in last week's victory, reclaiming his place on the right wing.

Leinster know a win of any kind will book their place in the Round of 16, with Leo Cullen's side also looking to finish in the top four, which would ensure home advantage in the second leg.

Bath: Ruaridh McConnochie; Gabe Hamer-Webb, Max Clark, Cameron Redpath, Tom Prydie; Orlando Bailey, Ben Spencer; Arthur Cordwell, Jacques du Toit, Will Stuart; Will Spencer, Charlie Ewels (capt); Tom Ellis, Sam Underhill, Josh Bayliss.

Replacements: Tom Doughty, Will Vaughan, Johannes Jonker, Josh McNally, Mike Williams, Joe Simpson, Max Ojomoh, Will Butt

Leinster: Hugo Keenan; Jordan Larmour, Garry Ringrose, Robbie Henshaw, Jimmy O'Brien; Johnny Sexton (capt), Luke McGrath; Andrew Porter, Ronan Kelleher, Michael Ala’alatoa; Ross Molony, Josh Murphy; Caelan Doris, Josh van der Flier, Jack Conan.

Replacements: Dan Sheehan, Cian Healy, Vakh Abdaladze, Ryan Baird, Max Deegan, Jamison Gibson-Park, Ross Byrne, Ciaran Frawley

Dave Kilcoyne (above) will become the 12th member of Munster's '200 Club', in Sunday's Pool B meeting with Wasps.

The loosehead brings up the milestone in the starting front row, as Munster make three changes from last week's narrow win against Castres in France.

Diarmuid Barron comes in for his first European start at hooker, with Niall Scannell ruled out due to injury, while Jean Kleyn comes back into the second row to partner Tadhg Beirne.

Peter O'Mahony captains the side, forming a settled backrow partnership with Jack O'Donoghue and Gavin Coombes.

There's just one change to the backline as Ben Healy swaps shirts with Jack Crowley to join Craig Casey at out-half.

Simon Zebo is also named on the replacements bench, having been left out of last week's win in France.

Munster are already qualified for the Round of 16, but a win would ensure home advantage for their second leg.

Munster: Mike Haley; Andrew Conway, Chris Farrell, Rory Scannell, Keith Earls; Ben Healy, Conor Murray; Dave Kilcoyne, Diarmuid Barron, Stephen Archer; Jean Kleyn, Tadhg Beirne; Peter O'Mahony (capt), Jack O’Donoghue, Gavin Coombes.

Replacements: Scott Buckley, Jeremy Loughman, John Ryan, Fineen Wycherley, John Hodnett, Craig Casey, Jack Crowley, Simon Zebo.

Wasps: Ali Crossdale; Marcus Watson, Paolo Odogwu, Ryan Mills, Josh Bassett; Charlie Atkinson, Dan Robson; Tom West, Tom Cruse, Elliott Millar-Mills; Elliott Stooke, James Gaskell; Brad Shields (capt), Thomas Young, Nizaam Carr.

Replacements: Gabriel Oghre, Rodrigo Martinez, Pieter Scholtz, Tim Cardall, Ben Morris, Will Porter, Rob Miller, Sam Spink

Mack Hansen (above) has been passed fit for Connacht, who are already assured of a last 16 place ahead of Sunday's meeting with Stade Francais in Paris.

The cancellation of Toulouse v Cardiff, and subsequent awarding of the game to the Welsh, means that Connacht cannot be overtaken in the top eight of Pool B.

Andy Friend has made six changes to the team beaten by Leicester last week, as Hansen and Alex Wootton come onto the wings in place of John Porch and Matt Healy with Tiernan O'Halloran continuing at full-back for his 199th appearance.

Bundee Aki is not included, despite avoiding a suspension for his referee outburst last week, as Tom Farrell joins Sammy Arnold in the centre.

Kieran Marmion is also rested, allowing Caolin Blade partner Jack Carty in the half-backs.

There are just two changes in the pack, with Finlay Bealham not included in the matchday squad, following the injury he suffered at the Sportsground last week. Greg McGrath starts for his second appearance for the province, with Jordan Duggan returning at loosehead.

Props Charlie Ward and Sam Illo are in line to make their debuts off the bench.

Stade Francais: Kylan Hamdaoui; Telusa Veainu, Ngani Laumape, Léo Barre, Adrien Lapegue; Nicolas Sanchez, William Percillier; Clément Castets, Tolu Latu, Paul Alo Emile; Mathieu De Giovanni, Paul Gabrillagues; Charlie Francoz, Sekou Macalou, Tala Gray (capt).

Replecements: Lucas Da Silva, Moses Alo Emile, Nemo Roelofse, Juan Johan Van der Mescht, Marcos Kremer, James Hall, Joris Segonds, Paul Champ

Connacht: Tiernan O'Halloran; Alex Wootton, Tom Farrell, Sammy Arnold, Mack Hansen; Jack Carty (capt), Caolin Blae; Jordan Duggan, Shane Delahunt, Greg McGrath; Oisín Dowling, Niall Murray; Cian Prendergast, Conor Oliver, Jarrad Butler

Replacements: Dave Heffernan, Charlie Ward, Sam Illo, Leva Fifita, Paul Boyle, Colm Reilly, Conor Fitzgerald, Diarmuid Kilgallen

Ulster have made two changes from the side that defeated Northampton Saints, with prop Eric O'Sullivan (above) and centre Angus Curtis drafted into the starting team to face ASM Clermont Auvergne at Kingspan Stadium on Saturday.

O’Sullivan will start at loosehead in the front row alongside hooker Rob Herring and tighthead Marty Moore.

The second row is made up of Alan O’Connor, who captains the side, and Kieran Treadwell, while flankers Marcus Rea and Nick Timoney retain their places in back row, partnering number eight Duane Vermeulen.

Curtis’ introduction to the XV means he will partner James Hume at centre. Ireland Six Nations call-up Mike Lowry resumes his place at full-back, while Robert Baloucoune and Ethan McIlroy start on the wings once again.

Nathan Doak and Billy Burns make up the half-back pairing.

Ulster: Mike Lowry; Robert Baloucoune, James Hume, Angus Curtis, Ethan McIlroy; Billy Burns, Nathan Doak; Eric O’Sullivan, Rob Herring, Marty Moore; Alan O’Connor (capt), Kieran Treadwell; Marcus Rea, Nick Timoney, Duane Vermeulen.

Replacements: John Andrew, Jack McGrath, Tom O’Toole, Sam Carter, Greg Jones, David Shanahan, Ben Moxham, Craig Gilroy

Clermont Auvergne: Cheik Tiberghien; Marvin O'Connor, Jean-Pascal Barraque, Tani Vili, Alivereti Raka; JJ Hanrahan, Morgan Parra; Etienne Falgoux, Yohan Beheregaray, Rabah Slimani; Paul Jedrasiak, Tomas Lavanini; Judicaël Cancoriet (capt), Lucas Dessaigne, Jacobus Van Tonder.

Replacements: Etienne Fourcade, Daniel Bibi Biziwu, Cristian Ojovan, Sébastien Vahaamahina, Fritz Lee, Kevin Viallard, Camille Lopez, Damian Penaud