Dortmund’s midfielder Felix Nmecha ( 2nd left) vies with Frankfurt’s defender Rasmus Kristensen (center) during the German first division Bundesliga football match in Frankfurt am Main, western Germany on Friday.

Dortmund's midfielder Felix Nmecha ( 2nd left) vies with Frankfurt's defender Rasmus Kristensen (center) during the German first division Bundesliga football match in Frankfurt am Main, western Germany on Friday.