The Nigerian attacker was not able to move for some seconds after he landed badly following a collision with Augsburg player, Felix Uduokhai, in the first half of the match.
It was reported that Mainz disclosed that the 22-year-old would spend the night in the hospital as a precautionary measure.
“Our striker Taiwo Awoniyi suffered a concussion in his collision with Augsburg’s Felix Uduokhai and is spending the night in the hospital as a precautionary measure,” Mainz wrote on Twitter.
“Get well soon, Taiwo!”
Awoniyi is currently on loan at Mainz from Liverpool.
He joined the Premier League giants in 2015 but has not made an appearance for Jurgen Klopp’s men.