Wolfsburg midfielder Kevin De Bruyne is under investigation by the German Football Association for allegedly swearing at a ballboy during a league match.

The Belgian has been accused of barking an expletive in the youngster's direction when ordering him to return the ball during his side's 1-1 draw with Eintracht Frankfurt.

Former Chelsea player De Bruyne said after the game that he will provide the ballboy with a signed shirt as an apology, according to Bild.

However, the German FA has asked Wolfsburg to provide a written statement outlining the incident as part of its formal investigation.

De Bruyne scored the equalising goal against Frankfurt to rescue a point for his side.