He has previously played in France for FC Metz and Stade de Reims, with whom he won Ligue 2 in 2017–18, as well as in Belgium with KV Kortrijk.

Having joined FC Metz at the age of six,[2] he started his career in the club's reserve team and made his debut in the Championnat de France amateur (CFA) on 11 October 2008, coming on as a substitute in a 1–1 draw away at Colmar.

He went on to play 19 matches during the campaign, becoming a regular fixture in the team that gained promotion back to the CFA as winners of their group.

As a result of his performances in the reserve team, Métanire was selected on the substitutes' bench for the match away at Clermont Foot on 29 October 2010.

Métanire was handed his first senior start in the final Ligue 2 match of the campaign, as Metz were beaten 4–3 away to Evian TG.

In reference to the occasion, t-shirts were sold with the message "Je t’aime comme un but de Métanire à la 91e".