The win over the last Bundesliga club kept Dortmund’s title hopes, but it was Sancho’s performance and his personal protest against Floyd’s death that were the main topic of discussion.
Dortmund led 1-0 by Thorgan Hazard when Sancho clinched his first goal since the restart of the Bundesliga, quickly taking off his team jersey to reveal the message, earning him a yellow card from the referee.
Teammate Achraf Hakimi also pulled up his shirt to display a jersey with the same words after scoring Dortmund’s fourth goal.
Earlier on Sunday, French striker Marcus Thuram scored twice in Borussia Moenchengladbach’s 4-1 victory over Union Berlin and kneeled to pay tribute to the Black Lives Matter movement.
Schalke’s midfielder Weston McKennie wore an armband with the words “Justice for George” on Saturday when his team lost at home to Werder Bremen.
Sancho, 20, is one of the best properties in world football, bringing his total to 17 goals and 16 assists for the season with his first senior hat-trick.
Dortmund were held 0-0 at half time, but Hazard’s goal broke dead before Sancho started the match with Hakimi and Marcel Schmelzer also on the scoresheet.
Borussia Moenchengladbach’s 4-1 victory propelled them to third position and the Champions League.