He moved to Europe in 1993, joining Belgian side Eendracht Aalst in Belgium. He had a trial with Norwich City while at Eendracht but no contract was offered. In October 1994 he moved to England, joining Bristol City for a fee of £80,000. He moved to Northampton Town on loan in August 1997, scoring four times in six league games during his loan spell. Such was his form that the move was made permanent, Seal costing the Cobblers £90,000, on 12 September 1997.
Seal finished his first season with Northampton as their leading goalscoring, with 14 goals in league and cup games. He was also the leading goalscorer for their reserve side with 12 goals in 10 games. He remained with Northampton until May 1999 when he was released after Northampton's relegation to Division Three.
He returned to Australia to play for Northern Spirit in the 1999–2000 NSL season where he scored 9 goals in 20 appearances.[3] However, after just one season Seal returned to England, where he joined Mangotsfield United in July 2000. In the 2001–02 season, he scored 11 goals in the FA Cup for Mangotsfield, earning him an award as the FA Cup's leading goalscorer.[4] Seal scored 166 goals in 236 appearances for Mangotsfield, before joining local rivals Yate Town in July 2006.[5]
Seal's stay with Yate lasted only four months, returning to Mangotsfield United in December 2006.[6] However, his return to Mangotsfield was a short one as in March 2007, he joined Western Football League Premier Division side Bitton where he only made two appearances.[citation needed]
In September 2008, Seal joined Western Football League Premier Division side Melksham Town as part of the coaching staff and as a player.[7]
International career
Seal represented the Australian Under 20's which finished fourth at the 1991 FIFA World Youth Championship in Portugal, where he played all six games. He scored three goals in total which included one goal in a 2–0 win over Trinidad and Tobago in the first round, scored the only goal in a 1–1 draw with Syria in the quarter finals which Australia won 5–4 after a penalty shoot-out, and scored the only goal in the 1–1 draw against USSR in the third place play-off match – which Australia lost after a penalty shoot-out 5–4. He also competed at the 1992 Summer Olympics in Spain for the Australian U23 team which finished fourth, playing in five games.