Arsenal are sending loan manager Ben Knapper to Germany for talks with Jordi Osei-Tutu.
Osei-Tutu was allegedly racially abused in a pre-season friendly this week, reports the Daily Mail.
Osei-Tutu, on loan at VFL Bochum, will be visited by Knapper.
Both Knapper and academy manager Per Mertesacker were quickly in contact with 20-year-old right back after the game.
Opposition St Gallen has since denied that any racist abuse had taken place, claiming the player assured them he had 'adhered' to club principles.
A statement read: "FC St.Gallen 1879 makes it clear that it strongly condemns all forms of racism and discrimination. Such misconduct would be sanctioned immediately.
"Our players have a respectful relationship with each other regardless of origin, skin colour or religion. In a clarifying conversation with the managers, the player concerned credibly assured that he had also adhered to this club principle yesterday in the match against VfL Bochum."