He made his first team debut for the county in a List A match in the 2009 Friends Provident Trophy against Nottinghamshire at the Rose Bowl.
In a season in which he made regular appearances for the Hampshire Second XI, as well as a single MCCA Knockout Trophy match for Berkshire,[6] Briggs appeared in three further List A matches,[7] as well as making his first-class debut in the County Championship against Somerset.
[9] 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 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.
[15] Briggs was able to force his way into Hampshire's first team virtually from the start of the 2010 season, due in part to Imran Tahir joining Warwickshire, while his replacement, Ajantha Mendis was unable to fulfill his commitment to playing for Hampshire, though the county did draft in the services of Rangana Herath.
[21] Soon after this he was selected for the England Lions squad, which had an invitation to take part in the West Indian domestic Regional Four Day Competition in February and March.
[24] Prior to this, in early January, Briggs played for Hampshire in the 2010–11 Caribbean Twenty20, which Hampshire and Somerset had been invited to play as compensation for being unable to take part in the 2010 Champions League Twenty20 due to its scheduling clash with the end of the 2010 English season.
[20] Briggs was in competition with the returning Imran Tahir during the 2011 season, making eleven County Championship appearances,[8] in what was ultimately a season of struggle for Hampshire, which resulted in their relegation from Division One to Division Two of the County Championship.
[26] His performances in this format once again caught the eye of the England selectors, this time Briggs was called up the main England squad for their season ending two match Twenty20 International series against the West Indies,[27] though he didn't feature in either match.
[29] Following the 2011 season, Briggs was once again selected for the England Lions subcontinent tours to Bangladesh and Sri Lanka in January and February 2012.
[31] Briggs was called up to the squad on 7 February, as one of three spinners in the team, alongside Samit Patel and Graeme Swann.
[33] Briggs bowled his full complement of ten overs, taking the wickets of Umar Akmal and Shoaib Malik to finish with figures of 2/39, which helped restrict Pakistan to 237 all out.