Priso primed for big role as Vancouver Whitecaps continue MLS Cup hunt

VANCOUVER — When injuries wreaked havoc on the Vancouver Whitecaps' defence this season, head coach Jesper Sorensen decided to work with what he had.What he had was Ralph Priso.The 23-year-old from Toronto started the season as a midfielder, but has filled in as a crucial centre back for Vancouver as the club pushes its way toward the MLS Cup.He's expected to fill a big role again on Saturday when the 'Caps play their first Western Conference final, battling expansion side San Diego FC for