Gloucestershire Cricket Head Coach Richard Dawson and wicketkeeper-batsman James Bracey will join up with England next week before the start of the West Indies Test series.
Dawson has been selected to take on the role of spin coach for the duration of the series, while 23-year-old Bracey will form part of a 30-man training squad.
Will Brown, Gloucestershire Chief Executive, congratulated the squad member and said he was an "exceptional cricketer".
He added: "It is absolutely fantastic news for him, his friends and family and all at Gloucestershire Cricket to see him included in the ‘behind-closed-doors training group’ training group for the West Indies Test Series.
"He is an incredibly hard worker and this commitment and dedication has really helped his natural talent to develop further and we wish him every success with the next stages of training and selection."
Dawson has been coaching the England Lions in Australia over the winter, working closely with some of the country’s established and up-and-coming spinners.
James Bracey will go into camp at the Ageas Bowl in Southampton, where he will live and train on-site.
All the players will participate in a three-day practice match before the squad for the first Test, scheduled to begin on 8 July, will be selected.
Gloucestershire's wicketkeeper-batsman has been training at the Bristol County Ground since the beginning of June and also played his part in the England Lions tour Down Under.
Bracey will be joined by a host of Somerset stars in the England training squad, including Dominic Bess, Lewis Gregory, Jack Leach, and brothers Craig and brother Jamie Overton.