Luka Jovic scored twice on his first game back at Eintracht Frankfurt to help Frankfurt topple Schalke 04 3-1.
Jovic left Frankfurt for Madrid in a big money move in 2019 but has endured a difficult time under Zidane.
He scored just two league goals in two seasons. He returned to Frankfurt on loan for the rest of the season and on his first game, he scored two goals after coming on as a substitute.
Angel Silva put Frankfurt ahead but American teenager Matthew Hoppe pulled it back immediately. Jovic then came on and won the game.