Harlequins have re-signed talented English quartet Sam Stuart, Sam Twomey, Harry Sloan and Jack Clifford to new contracts until at least 2016.
Stuart, Twomey and 2013 JWC champions Sloan and Clifford will graduate from the club's Academy to become senior squad members in 2014/15.
All four have played senior rugby for the club this season, with Cheltenham born Stuart making his starting debut earlier this month against Cardiff Blues in the LV= Cup.
Twomey, Sloan and 2013 IRB young player of the year nominee Clifford were also all part of the Aviva 'A' League and LV= Cup winning campaigns during the 2012/13 season.
"I am delighted that Harry, Jack and the two Sams have committed their future to Harlequins," said Harlequins Academy Manager Tony Diprose.
"They have all played a vital role for the club already in their careers and I have no doubt that they will all continue to play their part in keeping Harlequins at the top of the domestic and European game."
Clifford added: "I am really pleased to have re-signed for Harlequins, a club which I have been at since I was 14. Harlequins is a great club with a great bunch of guys and I feel lucky to be learning alongside them on a daily basis.
"I'm looking forward to the challenges the rest of this season, and next, will present as I continue to develop and push for more first team appearances."