Ruddock has selected a squad with an exciting mix of experience and youth for the first competitive outing for Warriors this season.
New fly half capture Matthew Jones will make his Warriors debut at Twickenham and the team will be captained by Matt Powell.
The squad contains several players who played in the Middlesex Sevens last season including England Sevens ace Marcel Garvey, back row dynamo Tom Wood and wing speedster Miles Benjamin.
Young stars such as Matt Cox and James Collins, who have both represented England at Sevens, Alex Grove, Charlie Fellows and Greg King are also given a chance to shine by the coaching team at Sixways Stadium.
Warriors Sevens Squad: Will Bowley, Tom Wood, Matt Cox, James Collins, Matt Powell, Jonny Arr, Matthew Jones, Marcel Garvey, Miles Benjamin, Alex Grove, Charlie Fellows, Greg King