He initially played for Widnes in England and the Manly-Warringah Sea Eagles in Australia.

Devereux was as an interchange/substitute in Widnes' 24–18 victory over Salford in the 1990 Lancashire Cup Final during the 1990–91 season at Central Park, Wigan on Saturday 29 September 1990.

Devereux played right wing in Widnes' 24–0 victory over Leeds in the 1991–92 Regal Trophy Final during the 1991–92 season at Central Park, Wigan on Saturday 11 January 1992.

Late in his career, prior to retirement he played for Bridgend Blue Bulls.

He achieving representative selection for the Great Britain and Wales national rugby league teams.[1][2][3]

Devereux won his first cap for Wales (RL) while at Widnes in 1991. He returned to rugby league in 2000 to represent Wales in the 2000 Rugby League World Cup.[5] He was capped for Wales 12 times during his rugby league career.

Devereux was called up as an injury replacement during the 1990 Great Britain Lions tour He was also selected to go on the 1992 Great Britain lions tour of Australia and NZ. Devereux played from the bench in Great Britain's defeat by Australia in the 1992 Rugby League world cup final at Wembley. Devereux scored 2 tries from right wing in Great Britain’s 29-12 second test victory against New Zealand at Central Park Wigan on 30 October 1993.

After retiring from playing he became team manager of Wales