His performances during the early part of the season, mostly for Hampshire's Second XI, caught the eye of the selectors of the England Under-19s, with Briggs called up to the team for their limited-overs matches against Bangladesh Under-19s in July 2009. Briggs made five Youth One Day International appearances, and a single Youth Twenty20 International appearance at London Road, Sleaford, during the series. Later in October 2009, Briggs toured Bangladesh with the England Under-19s, playing four further Youth One Day Internationals against the hosts, as well as making his only Youth Test match appearance at the Zohur Ahmed Chowdhury Stadium, Chittagong, during which he took a five wicket haul. Briggs was a part of England Under-19s squad for the 2010 Under-19 World Cup, which was played in New Zealand in January 2010, alongside Hampshire teammates Michael Bates and James Vince. Briggs played in three matches during the tournament, against Hong Kong Under-19s, Afghanistan Under-19s and the West Indies Under-19s. He won one man of the match award against Afghanistan, for his bowling performance of 3/15.
