Paul Onuachu is set to link up with Ligue 1 outfit Metz from Southampton on a season-long loan deal. According to French news outlet, L’equipe, Metz and Southampton have already agreed on the deal. Onuachu will replace Georges Mikautadze, who joined Dutch club Ajax this week. The Georgian international was responsible for bringing the club back to Ligue 1 and scored two crucial goals this season…