 Injuries restricted him to bowling only 63 overs during the 2014 season and limited him to only two T20 appearances in 2015 before his season was cut short by triceps and back injuries which required surgery.Griffiths returned to the Kent side in May 2016 in a T20 match against Somerset, a format in which he has often been employed as a "death" bowler, bowling the final overs of an innings.Griffiths left Kent when his contract expired in September 2016.