By Graham Hardcastle

Getting shirty: Jordan Thompson and Katie Levick model the new Yorkshire and Diamonds T20 shirts.
PICTURE: SWPix

IT could be a teaser on a Question of Sport. When Yorkshire Vikings take on Birmingham Bears at Edgbaston on Saturday evening, in the Blast Off’s main event, how many clubs will take to the field? The obvious answer would be two. Wrong. It is 634.
Yorkshire and Birmingham, obviously. But also the 632 affiliated league clubs who have been imprinted onto the Vikings’ new Vitality Blast shirt as part of the county’s initiative to c...