In the summer of 2001, after a loan to Red Star FC, Arnolin's contract with PSG ran out and he became a free agent. He was quickly acquired by semi-professionals Villemomble Sports (also in Paris, competing in the fourth division) but, however, never appeared in a league match for the side, and in the summer of 2002 was released.
Arnolin then moved to Portugal, to play for F.C. Pedras Rubras in the third level. After solid performances he attracted attention from bigger clubs in the country, and eventually signed his first professional contract with Gil Vicente FC, in the Primeira Liga. In his second season he scored an impressive seven league goals for the Barcelos team, catching the eye of Madeira-based C.S. Marítimo and signing a two-year deal in late May 2006;[1] after only missing one league game in his debut campaign, he played second-fiddle in the second (15 appearances).
"There is a good possibility that Grégory will join West Bromwich but there are still issues to be resolved. We should know more at the end of this month when people are back from holiday and all focus switches towards pre-season. I think there is a big chance he will be a West Bromwich player next season. He is well aware of how close they were to playing in the Premiership and the club's ambitions match his own. What we don't know yet is whether it would be a transfer for about £400,000 or a loan move – that is one of the issues we have to discuss".[2]
However, nothing came of it and Arnolin remained in Marítimo. On 7 June 2008, he signed for another Portuguese team, Vitória de Guimarães,[3] as he was also applying for Portuguese citizenship – during his spell in the country, he began being addressed by his first name.
On 24 June 2009, Grégory moved to Sporting de Gijón, on a three-year link.[4] In only his third game for the Asturians he netted through a header, as 10-men Sporting levelled 2–2 at Valencia CF with just four minutes to go.[5]
In June 2013, aged nearly 33, Grégory was called up by Martinique for the 2013 CONCACAF Gold Cup.[10] He made his debut in the tournament's opener, playing the full 90 minutes in a 1–0 win against Canada.[11][12]
Career statistics
Club
Appearances and goals by club, season and competition
^"¿Qué fue de Grégory Arnolin?" [What happened to Grégory Arnolin?]. La Voz de Asturias (in Spanish). 27 December 2017. Archived from the original on 11 July 2018. Retrieved 11 July 2018.
^"La nueva vida de Gregory Arnolin" [Gregory Arnolin's new life]. La Voz de Asturias (in Spanish). 3 June 2017. Archived from the original on 11 July 2018. Retrieved 11 July 2018.