UEFA is investigating whether Junior Moraes is eligible to play for Ukraine after Portugal and Luxembourg lodged complaints about him featuring in Euro 2020 qualifiers against the two nations.
Moraes, a Brazil-born striker, is enjoying a fine season at club level with Shakhtar Donetsk in Ukraine, the country in which he has played much of his senior career.
He received his first call-up to the Ukraine team ahead of recent qualifying matches against Portugal and Luxembourg and played in both games, having reportedly been granted a passport.