Famous as a lock for Ireland's Leinster rugby team, Toner also played for the Ireland National Rugby Union and the Ireland Wolfhounds, earning six caps with the latter team. Standing at an adult height of close to seven feet, he distinguished himself as one of the tallest players in rugby union history.
He played his youth career for the Ireland Schools, Ireland Under 19, and Ireland Under 21 rugby teams.
In late 2014, he had more than 21,000 Twitter followers.
Born in Moynalvey, County Meath, Ireland, he later attended Castleknock College and University College Dublin.
He and Anthony Foley both played rugby for the Ireland national team.