Amlin Cup semi-finals preview

London Wasps v Bath
London Wasps have made only one change to their team to take on Bath at Adams Park on Sunday.
Jake Cooper-Woolley, who started against Gloucester at Twickenham last week, is injured so Phil Swainston starts at tighthead with Taione Vea coming onto the bench.
Meanwhile, Bath have made six changes to the side which earned a bonus point victory over Worcester last weekend.
Anthony Perenise, Dominic Day, Guy Mercer, Peter Stringer, Jonathan Joseph and Semesa Rokoduguni all return to the starting line-up.
London Wasps: Andrea Masi; Will Helu, Elliot Daly, Chris Bell (Capt.), Tom Varndell; Andy Goode, Joe Simpson; Matt Mullan, Carlo Festuccia, Phil Swainston; Joe Launchbury, Kearnan Myall; Ashley Johnson, James Haskell, Nathan Hughes.
Replacements: Tom Lindsay, Simon McIntyre, Taione Vea, Tom Palmer, Sam Jones, Charlie Davies, Joe Carlisle, Charlie Hayter.
Bath: Nick Abendanon; Semesa Rokoduguni, Jonathan Joseph, Kyle Eastmond, Matt Banahan; George Ford, Peter Stringer; Nathan Catt, Rob Webber, Anthony Perenise; Stuart Hooper (Capt.), Dominic Day; Matt Garvey, Guy Mercer, Leroy Houston.
Replacements: Ross Batty, Paul James, David Wilson, Alafoti Fa'osiliva, Carl Fearns, Micky Young, Gavin Henson, Anthony Watson.
Northampton v Harlequins
England stars Courtney Lawes, Tom Wood and Luther Burrell have been named among the replacements for Northampton's Amlin Cup semi-final against Harlequins tomorrow.
Full-back Ben Foden is the fourth big name to make way as the Saints look to secure a Premiership home semi-final when the it resumes next week.
James Wilson comes in at full-back for Foden with England U20s centre Tom Stephenson wearing the No.12 shirt.
Up front James Craig takes over from Lawes to partner with Samu Manoa in the second row while Calum Clark – who made his 100th appearance against London Irish last Sunday – comes off the bench to start in the back row.
Meanwhile, Harlequins see the return of Chalrie Walker who has been sidelined since the Heineken Cup clash in Clermont back in Januray.
Walker starts on the right wing taking over from  Ollie Lindsay-Hague who drops to the bench while Ben Botica will lead the attack with Nick Evans picking up a knock against Leicester last time out.
The other change to starting line-up sees the fit-again Joe Marler returning at loosehead for Mark Lambert.
Among the replacements, England U20s fly-half Louis Grimoldby will look to make his first European appearance for the club.
Northampton: James Wilson; Jamie Elliott, George Pisi, Tom Stephenson, George North; Steve Myler, Kahn Fotuali'i; Alex Waller, Ross McMillan, Salesi Ma'afu, Samu Manoa, James Craig, Calum Clark, Phil Dowson (c), Sam Dickinson.
Replacements: Mikey Haywood, Gareth Denman, Tom Mercey, Courtney Lawes, Tom Wood, Ryan Glynn, Luther Burrell, Tom Collins
Harlequins: Mike Brown; Charlie Walker, Tim Molenaar, Jordan Turner-Hall, Sam Smith; Ben Botica, Danny Care; Joe Marler, Dave Ward, Kyle Sinckler; Charlie Matthews, George Robson; Luke Wallace, Chris Robshaw (Capt.), Nick Easter.
Replacements: Rob Buchanan, Mark Lambert, Paul Doran Jones, Tom Guest, Maurie Fa'asavalu, Karl Dickson, Louis Grimoldby, Ollie Lindsay-Hague.