Willie Isa signs for Widnes

Widnes have bolstered their 2012 Super League squad by signing utility back Willie Isa from Castleford on a two-year deal.

The New Zealand and Samoan international has had NRL experience with the Penrith Panthers and Melbourne Storm before been signed by the Tigers for the 2011 season.

The 22-year-old has made 7 appearances for Castleford this season, crossing the whitewash on 3 occasions.