England have confirmed the selection of Leicester Tigers trio Dan Cole, Ben Youngs and Tom Youngs in a 31-man squad for the Rugby World Cup.Head coach Stuart Lancaster made his squad announcement in front of the media on Thursday afternoon, confirming the final trim of a group that has been involved in the warm-up fixtures against France home and away in the last couple of weeks.   Tightead prop Cole is among three members in the squad with more than 50 Test caps, while scrum-half Ben Youngs is also approaching that mark. Older brother Tom goes into his first World Cup with 23 caps to his credit.   The group of 17 forwards and 14 backs – drawn from eight Aviva Premiership clubs – open their campaign against Fiji at Twickenham on September 18.   Lancaster said: “Selection wasn’t easy and it is tough to leave anyone out, but it’s important to stress that the players not in this group are still part of our wider squad and could come in at any point.     “After 10 weeks in camp we have made our final selection of players and we believe we have a great group to take us into the tournament.”    England Rugby World Cup squad   Props Kieran Brookes (Northampton Saints, 10 caps)  Dan Cole (Leicester Tigers, 51 caps)  Joe Marler (Harlequins, 32 caps)  Mako Vunipola (Saracens, 22 caps)  David Wilson (Bath Rugby, 43 caps)  Hookers Jamie George (Saracens, 1 cap)  Rob Webber (Bath Rugby, 13 caps) Tom Youngs (Leicester Tigers, 23 caps)  Second rows George Kruis (Saracens, 8 caps)   Joe Launchbury (Wasps, 23 caps)  Courtney Lawes (Northampton Saints, 39 caps)  Geoff Parling (Exeter Chiefs, 24 caps)  Back rows James Haskell (Wasps, 60 caps)  Ben Morgan (Gloucester Rugby, 28 caps)  Chris Robshaw (Harlequins, 38 caps)(c)   Billy Vunipola (Saracens, 18 caps)  Tom Wood (Northampton Saints, 37 caps)    Scrum-halves Danny Care (Harlequins, 52 caps) Richard Wigglesworth (Saracens, 22 caps)  Ben Youngs (Leicester Tigers, 48 caps)   Fly-halves Owen Farrell (Saracens, 30 caps)  George Ford (Bath Rugby, 12 caps)  Centres Brad Barritt (Saracens, 22 caps)  Sam Burgess (Bath Rugby, 1 cap)  Jonathan Joseph (Bath Rugby, 12 caps)  Henry Slade (Exeter Chiefs, 1 cap)  Back three Mike Brown (Harlequins, 38 caps)  Alex Goode (Saracens, 18 caps)   Jonny May (Gloucester Rugby, 15 caps)  Jack Nowell (Exeter Chiefs, 9 caps)   Anthony Watson (Bath Rugby, 10 caps)