Full back Thomas moves to Gloucester Rugby from the Dragons in the summer of 2012.

The 25 year old Carmarthen born full back joined the Dragons from the Scarlets during the 2006-7 season and has gone on to make more than 80 appearances for the Gwent based side.

He has been capped at Sevens level by Wales and has built a reputation as an attacking threat with ball in hand who is also solid in defence with a good kicking game.

Martyn has been a regular in the matchday squad throughout 2012-13 and aided Nigel Davies' selection options with his ability to cover wing and full back.