All the team news for Sunday's Aviva Premiership clashes including Newcastle Falcons v Harlequins.
Worcester v Wasps (3.00pm)
Wasps: 15 Rob Miller, 14 Frank Halai, 13 Brendan Macken, 12 Alapati Leiua, 11 Josh Bassett, 10 Danny Cipriani, 9 Dan Robson, 1 Matt Mullan, 2 Tommy Taylor, 3 Marty Moore, 4 James Gaskell, 5 Kearnan Myall, 6 Ashley Johnson, 7 Thomas Young, 8 Alex Rieder.
Replacements: 16 Jack Willis, 17 Ben Harris, 18 Phil Swainston, 19 Will Rowlands, 20 Guy Thompson, 21 Joe Simpson, 22 Guy Armitage, 23 Piers O'Conor.
Worcester Warriors: 15 Chris Pennell, 14 Bryce Heem, 13 Wynand Olivier, 12 Jackson Willison, 11 Cooper Vuna, 10 Jamie Shillcock, 9 Jonny Arr, 1 Val Rapava Ruskin, 2 Jaba Bregvadze, 3 Nick Schonert, 4 Donncha O'Callaghan, 5 Darren Barry, 6 Dewald Potgieter, 7 Sam Lewis, 8 Alafoti Faosiliva.
Replacements: 16 Jack Singleton, 17 Na'ama Leleimalefaga, 18 James Johnston, 19 Andrew Kitchener, 20 Phil Dowson, 21 Michael Dowsett, 22 Connor Braid, 23 Josh Adams.
Newcastle v Harlequins (3.00pm)
Newcastle Falcons: 15 Mike Delany, 14 Vereniki Goneva, 13 Fred Burdon, 12 Juan Pablo Socino, 11 Alex Tait, 10 Joel Hodgson, 9 Michael Young, 1 Rob Vickers, 2 Scott Lawson, 3 David Wilson, 4 Evan Olmstead, 5 Will Witty, 6 Callum Chick, 7 Mark Wilson, 8 Ally Hogg.
Replacements: 16 Ben Sowrey, 17 Alex Rogers, 18 Jon Welsh, 19 Opeti Fonua, 20 Nick Civetta, 21 Sonatane Takulua, 22 Marcus Watson, 23 Dominic Waldouck.
Harlequins: 15 Aaron Morris, 14 Alofa Alofa, 13 Joe Marchant, 12 Jamie Roberts, 11 Tim Visser, 10 Tim Swiel, 9 Karl Dickson, 1 Mark Lambert, 2 Rob Buchanan, 3 Will Collier, 4 Charlie Matthews, 5 James Horwill, 6 James Chisholm, 7 Luke Wallace, 8 Jack Clifford.
Replacements: 16 Dave Ward, 17 Owen Evans, 18 Adam Jones, 19 George Merrick, 20 George Naoupu, 21 Charlie Mulchrone, 22 Ruaridh Jackson, 23 Charlie Walker.