Bolton striker El-Hadji Diouf is the subject of a police investigation following allegations that he spat at Middlesbrough supporters last week.
Diouf has been in trouble for spitting before
Cleveland police are investigating after Boro fan James Shield, 11, said the Senegal striker spat a mouthful of juice at him during the 1-1 draw.
The young supporter told the Daily Mail newspaper: "I was sat behind the Bolton subs who were in the dug-out.
"Diouf just turned round and spat between the glass of the dug-out."
He added: "It was orange juice or Lucozade. It just flew through the gap and hit me."
A spokesman for Cleveland police said: "We are investigating a complaint made by this family into the alleged actions of a Bolton footballer at the Middlesbrough against Bolton game."