Peel, 27, has been rotated in the Sharks' scrum-half role with England international Richard Wigglesworth.
Sale scrum-half Richard Wigglesworth joins Vainikolo, Cipriani and Croft as the uncapped members of the squad.
Half-backs Richard Wigglesworth and Hodgson, and full-back Mike Brown, are omitted from the 22 altogether.
Replacement Richard Wigglesworth scored late on to secure Sale's place in next season's Heineken Cup.
Sale controlled matters after that and Wigglesworth touched down in the closing stages to seal the win.
"The forwards were awesome - they kept hold of the ball for a good five minutes, " said Wigglesworth.
LIFFE's chief executive, quit on July 21st, as did Jack Wigglesworth, its chairman.
Simon Wigglesworth, deputy chief executive at Epilepsy Action, said the research was encouraging.
Lock Chris Jones did the damage with a well-timed run through midfield, with Wigglesworth on hand to complete the move.
The 27-year-old has been rotated in Sharks' scrum-half role with England international Richard Wigglesworth, who has started eight games at scrum-half.
Wigglesworth's introduction after 55 minutes received the biggest cheer of the night as the newly-appointed England star looked to inspire Sale.
Peel's decision to stay at Sale was probably eased by his scrum-half rival Richard Wigglesworth signing a deal with Saracens this week.
Schalk Brits and Richard Wigglesworth gave Sarries a comfortable 17-7 lead at half-time, with Billy Twelvetrees converting a penalty try for Leicester.
But Sarries hit back when Brits ran at the visiting defence and sent Wigglesworth over with an inside pass, Hougaard converting again.
Tries from Paul Sackey and Richard Wigglesworth, along with 14 points from Jonny Wilkinson, helped England to a 24-13 win over a youthful French side.
And Ashton singled out scrum-half Wigglesworth, who capped off a fine debut with a score in the corner in the final seconds of the match.
Simon Wigglesworth, deputy chief executive of Epilepsy Action, said more research was needed, particularly given the "small sample size and the inconsistencies in the data collected".
Ed Barnes did slot the opening points with a penalty but Sale responded with Richard Wigglesworth, Elvis Seveali'i and Sean Cox combining before White ploughed over.
Tries from Richard Wigglesworth and Andy Vilk helped them to a 23-11 lead, but a pair of yellow cards left them struggling in the final quarter.
Hugh Vyvyan spurned a fantastic opportunity for a second Sarries try when his pass to scrum-half Richard Wigglesworth went wayward with the route to the line clear.
Wigglesworth lifted Sale as he took control and almost masterminded a try - his quick break from a scrum saw Hodgson offload to Chris Bell but he could only knock on.
But it was not to be as a strong Sale side, including England stars Andrew Sheridan, Richard Wigglesworth and Mark Cueto, failed to sparkle without their injured talisman, New Zealander Luke McAlister.
Abendanon then rubbed further salt into Saracens wounds when he grabbed an opportunist, if controversial, try, hacking the loose ball on to touch down after scrum-half Michael Claassens' kick deflected off referee Tim Wigglesworth.
Veteran Bath prop David Barnes and uncapped forwards Richard Blaze and Courtney Lawes have been called up, while fly-half Andy Goode, scrum-half Richard Wigglesworth, winger David Strettle, back-rower James Haskell and prop Duncan Bell all join the elite squad.
The home side were briefly reduced to 14 men themselves when, with Northampton camped on Sale's line, scrum-half Peel incurred the wrath of referee Tim Wigglesworth and became the first of the night's three sin-binnings for kicking the ball out of Martin Roberts' hands as he attempted to take a quick penalty tap.
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