Squads

Ospreys: D Evans; K Giles, K Fonotia, O Watkin, C Allen; D Biggar, R Webb; N Smith, S Otten, D Arhip, B Davies, A Wyn Jones (capt), D Lydiate, J Tipuric, D Baker.

Replacements: S Parry, P James, M Fia, L Ashley, O Cracknell, T Habberfield, S Davies, J Hook.

Clermont Auvergne: S Spedding; D Strettle, D Penaud, R Lamerat, A Raka; C Lopez, M Parra (capt); R Chaume, B Kayser, R Slimani, P Jedrasiak, S Vahaamahina, J Cancoriet, A Lapandry, F Lee

Replacements: Y Beheregaray, E Falgoux, A Jarvis, S Timani, P Yato, G Laidlaw, P Fernandez, P Betham.

Team news

Ospreys scrum-half Rhys Webb has recovered from a calf problem to start Sunday's Champions Cup opener against Clermont Auvergne in Swansea.

Justin Tipuric and Dan Baker return to the back-row as coach Steve Tandy makes five changes from the 18-19 loss to Scarlets in the Pro14.

Keelan Giles, Dmitri Arhip and Owen Watkin start, with James Hook and Sam Davies on the bench.

Clermont are without backs Nick Abendanon and Wesley Fofana.

But Alivereti Raka returns after a heel injury, while Rabah Slimani, Benjamin Kayser and Raphael Chaume start in an all-changed front row from the win over Toulouse.

France scrum-half Morgan Parra will make his 200th appearance for Clermont.

Squads

Northampton: A Tuala; G North, L Burrell, P Francis, B Foden; S Myler, C Reinach; A Waller, D Hartley (c), K Brookes, M Paterson, D Ribbans, C Lawes, J Gibson, T Harrison

Replacements: M Haywood, F van Wyk, J Ford-Robinson, A Ratuniyarawa, T Wood, N Groom, H Mallinder, T Collins

Saracens: A Goode; L Williams, M Bosch, B Barritt (c), C Wyles; O Farrell, R Wigglesworth; M Vunipola, J George, V Koch, N Isiekwe, G Kruis, M Itoje, C Clark, J Wray

Replacements: S Brits, R Barrington, J Figallo, D Day, S Burger, B Spencer, A Lozowski, D Taylor

Team news

Fly-half Stephen Myler makes his first start of the season as Northampton face Saracens in their Champions Cup opener at Franklin's Gardens on Sunday.

Courtney Lawes - the Premiership player of the month for September - also returns to the Saints' starting line-up while Ben Foden is on the wing.

British and Irish Lion Owen Farrell makes his comeback at fly-half for Saracens after a slight calf strain.

Richard Wigglesworth replaces Ben Spencer at scrum-half.

Vincent Koch comes in for Juan Figallo at prop in the only other change from the defending champions' 38-19 win over Wasps in the Premiership last weekend.

Flanker Calum Clark will face his former side for the first time since making the switch south in the summer.

Squads

Toulon: H Bonneval; J Tuisova, M Bastareaud (capt), M Nonu, C Ashton; A Belleau, E Escande; F Fresia, G Guirado, M Van Der Merwe, S Rebbadj, M Gorgodze, J Fernandez Lobbe, F Isa, R Lakafia.

Replacements: A Etrillard, X Chiocci, L Chilachava, R Gahetau, S Radradra, F Trinh-Duc, S Tillous-Borde, J Kruger.

Scarlets: L Halfpenny; J Mcnicholl, J Davies, S Williams (capt), S Evans; R Patchell, A Davies; W Jones, R Elias, S Lee, J Ball, L Rawlins, A Shingler, W Boyde, T Beirne.

Replacements: K Owens, D Evans, W Kruger, D Bulbring, J Macleod, G Davies, P Asquith, H Parkes.

Team news

Leigh Halfpenny returns from a hamstring problem for Scarlets' Champions Cup trip to Toulon on Sunday.

The Wales and British and Lions full-back is one of four changes from the 19-18 win at Ospreys in the Pro14.

Centre Scott Williams starts at centre and captains the team, with Aled Davies in at scrum-half.

Ryan Elias starts at hooker as regular captain Ken Owens is rested on the bench, with Scarlets having a five-day turnaround before facing Bath.

Scarlets skipper for the game Williams and fellow Wales centre Jonathan Davies face a mouth-watering battle with the Toulon midfield of France's Mathieu Bastareaud and All Black Ma'a Nonu.

Former England wing Chris Ashton starts on the wing for the French giants, while Argentina veteran Juan Fernandez Lobbe is in the back-row.

France half-back Francois Trinh-Duc is on the bench for Toulon.