On 18 January 2010 Prydie, aged 17, was a surprise inclusion in the 35-man Wales national squad named for the 2010 Six Nations despite playing just seven minutes for the Welsh region the Ospreys. Despite media speculation that Prydie would be named in the squad, he was still shocked at his selection. He was notified by a text message from Wales national coach Warren Gatland only 20 minutes before the public announcement of the squad; he initially thought that the message was part of an elaborate practical joke by some of his Ospreys teammates. At the time of his selection, Prydie had never met or spoken to Gatland.