England coach Eddie Jones has confirmed a 40-member squad for the second week of training in Bristol between 14th and 18th July.
Gloucester's Ollie Thorley, Bath Rugby’s Tom Dunn alongside Harlequins trio Mike Brown, Alex Dombrandt and Marcus Smith are the latest addition to the squad.
Meanwhile, Danny Cipriani, Sam Underhill and Anthony Watson have been assigned strength and conditioning work separately off-site.
“Our preparation is about making sure the players peak for the World Cup. It’s not about being ready now for it," said Jones.
“Some players we feel will benefit now from being away from the camp for a little bit and will do specialised strength and conditioning work.
“We want to keep the squad fresh and alive which is important and we want to make sure there is a little bit of cooperative competition for selection and edge around.”
The England boss also believes Bristol would be a perfect location as they step up their preparations for the Rugby World Cup later this year.
“We are in Bristol this week as a bit of a change of scenery and pace. We have got good facilities and will continue to work very hard on particularly our physical conditioning but also our ability to implement our game plan under those physical conditions.
“The ante goes up again in this week. The players who have come in from the Premiership final will increase their contribution and the other guys are in their fourth week and are starting to get near good physical condition.”
England will face Wales in a home and an away fixture following which they will take on Ireland and Italy in the warm-up games leading to the showpiece event.
England 40-member squad:
Dan Cole (Leicester Tigers, 85 caps)
Luke Cowan-Dickie (Exeter Chiefs, 11 caps)
Tom Curry (Sale Sharks, 10 caps)
Alex Dombrandt (Harlequins, uncapped)
Tom Dunn (Bath Rugby, uncapped)
Charlie Ewels (Bath Rugby, 10 caps)
Ellis Genge (Leicester Tigers, 9 caps)
Jamie George (Saracens, 37 caps)
Maro Itoje (Saracens, 27 caps)
George Kruis (Saracens, 32 caps)
Joe Launchbury (Wasps, 58 caps)
Courtney Lawes (Northampton Saints, 71 caps)
Lewis Ludlam (Northampton Saints, uncapped)
Joe Marler (Harlequins, 59 caps)
Ben Moon (Exeter Chiefs, 8 caps)
Brad Shields (Wasps, 8 caps)
Kyle Sinckler (Harlequins, 22 caps)
Jack Singleton (Saracens, uncapped)
Billy Vunipola (Saracens, 41 caps)
Mako Vunipola (Saracens, 53 caps)
Harry Williams (Exeter Chiefs, 17 caps)
Mark Wilson (Newcastle Falcons / Sale Sharks, 13 caps)
Mike Brown (Harlequins, 72 caps)
Joe Cokanasiga (Bath Rugby, 4 caps)
Elliot Daly (Saracens, 30 caps)
Owen Farrell (Saracens, 70 caps)
George Ford (Leicester Tigers, 55 caps)
Piers Francis (Northampton Saints, 4 caps)
Willi Heinz (Gloucester Rugby, uncapped)
Jonathan Joseph (Bath Rugby, 40 caps)
Jonny May (Leicester Tigers, 45 caps)
Ruaridh McConnochie (Bath Rugby, uncapped)
Jack Nowell (Exeter Chiefs, 33 caps)
Henry Slade (Exeter Chiefs, 22 caps)
Marcus Smith (Harlequins, upcapped)
Ben Spencer (Saracens, 3 caps)
Ben Te’o (unattached, 18 caps)
Ollie Thorley (Gloucester Rugby, uncapped)
Manu Tuilagi (Leicester Tigers, 32 caps)
Ben Youngs (Leicester Tigers, 85 caps)