BELGRADE, Serbia (AP) — Germany’s latest soccer prodigy will have to wait for a national team debut after Jürgen Klopp left 17-year-old Wael Mohya out of his squad to face Serbia in the Nations League.

The attacking midfielder was a surprise callup ahead of Germany’s games against Serbia on Friday and the Netherlands on Monday. Klopp previously signaled that bringing in Mohya was chiefly about assessing him for the future and acquainting him with the squad.

Germany confirmed on Thursday that Mohya would travel with the 23-player squad to Serbia but won’t feature in the game.

Mohya became Borussia Moenchengladbach’s youngest ever player when he made his debut in the Bundesliga aged 16 last December. He’s scored four times in 24 games since then, including twice in nine this season.

Full back Ridle Baku has replaced defender Waldemar Anton, who misses out with a muscle issue.

The Serbia game is the next test for Klopp’s new-look Germany after one win from his first four games in charge. Klopp opted against calling up Barcelona winger Karim Adeyemi and Juventus forward Nick Woltemade this time.