Parramatta have won a cross-code battle for the signature of Blaise Barnes, nabbing the schoolboy rugby sensation on a two-year deal.

The Eels beat local and overseas rugby clubs, as well as their NRL rivals, to the services of one of the most sought-after teenage playmakers in years.

Youtube footage of Barnes carving up opposition rugby defences has made him hot property globally among talent scouts. Despite suffering a season-ending ACL injury playing for renowned rugby nursery St Joseph's College in just the second trial match of the season, Barnes chose to follow in the footsteps of his father and switch back to rugby league. Troy Barnes played three first-grade games for one of his son's suitors, South Sydney, but the Eels are very confident his son will surpass that tally in years to come.

"I grew up playing league and wanted to get back into it eventually," Barnes said.