The DFB will examine tributes Jadon Sancho, Marcus Thuram and Weston McKennie made to George Floyd during Bundesliga matches at the weekend.
After scoring the first of his three goals in a thrashing of Paderborn on Sunday, Sancho revealed a t-shirt bearing the handwritten message "Justice for George Floyd", for which he received a booking, with team-mate Achraf Hakimi also revealing a similar message.
Sancho's tribute followed on from Thuram taking a knee after scoring for Borussia Monchengladbach against Union Berlin, while Schalke's United States international McKennie wore a "Justice for George Floyd" armband.