The Ospreys v Glasgow and the Dragons vs Edinburgh squad has been announced
Ospreys: Dan Evans; Jeff Hassler, Ben John, Josh Matavesi, Eli Walker; Dan Biggar, Rhys Webb; Nicky Smith, Scott Baldwin, Aaron Jarvis, Tyler Ardron, Alun Wyn Jones (capt), James King, Justin Tipuric, Dan Baker.
Replacements: Sam Parry, Marc Thomas, Dmitri Arhip, Rory Thornton, Dan Lydiate, Tom Habberfield, Sam Davies, Jonathan Spratt.
Glasgow Warriors: Stuart Hogg; Tommy Seymour, Richie Vernon, Peter Horne, Niko Matawalu; Duncan Weir, Henry Pyrgos; Ryan Grant, Pat MacArthur, Jon Welsh, Tim Swinson, Jonny Gray, Rob Harley, Chris Fusaro, Josh Strauss (Captain)
Replacements Fraser Brown, Gordon Reid, Euan Murray, Leone Nakarawa, Ryan Wilson, Lee Jones, Fraser Lyle, Peter Murchie.
NG Dragons: Tom Prydie; Ashton Hewitt, Tyler Morgan, Jack Dixon, Hallam Amos; Jason Tovey, Luc Jones; Phil Price, T. Rhys Thomas (capt), Brok Harris, Cory Hill, Rynard Landman, Nick Crosswell, Nic Cudd, Taulupe Faletau.
Replacements: Hugh Gustafson, Lloyd Fairbrother, Dan Way, James Thomas, Ollie Griffiths, Richie Rees, Dorian Jones, Geraint Rhys Jones.
Edinburgh: Jack Cuthbert; Dougie Fife, Sam Beard, Andries Strauss, Tim Visser; Phil Burleigh, Sam Hidalgo-Clyne; Alasdair Dickinson, Ross Ford, WP Nel, Fraser McKenzie, Ben Toolis, Stuart McInally (capt), Hamish Watson, Cornell Du Preez.
Replacements: Neil Cochrane, Rory Sutherland, John Andress, Anton Bresler, Roddy Grant, Nathan Fowles, Tom Heathcote, Tom Brown.