Amad left Manchester United scouts pondering if he can take Cristiano Ronaldo's place in the first-team squad.
The on-loan star fired Sunderland to consecutive wins and reacted positively to rumours he could be recalled by Old Trafford boss Erik Ten Hag by bagging his fourth goal in six games.
The £19m Ivorian wing star was watched by a United scout who will file a report to United chiefs on whether Amad is a contender to fill Ronaldo's vacated squad berth.