A League Two player who served a 10-match ban for biting an opponent last season is being investigated by police for apparently repeating the act.
Dagenham & Redbridge's Joss Labadie, who was banned for biting while at Torquay last season, allegedly bit Stevenage's Ronnie Henry on Saturday.
The pair tangled late in the Daggers' 1-0 win at Victoria Park and Henry quickly showed his finger to officials.
Stevenage boss Graham Westley said Henry had "a nasty injury".
Hertfordshire Constabulary said they were making inquiries after being "made aware of an incident".
The two players were involved in a heated exchange in the tunnel afterwards and police officers waited outside the away changing room to speak to Labadie, 24.
Westley told reporters: "He's [Henry] not in a good situation, he's in the treatment room and he's suffered quite a nasty injury.
"Ronnie was in a state of shock, you don't go on a football pitch expecting to lose your finger and Ronnie was horrified by what has gone on because it's a football match and he's nearly lost his finger."
Labadie was fined £2,000 and banned for biting Chesterfield's Ollie Banks in February 2014.
In an ill-tempered game on Saturday, Labadie challenged Henry, 31, near the touchline and, when he failed to release a ball which had gone out for a throw in, Henry tried to pull the ball away from him.
The Daggers player was booked, while Henry briefly showed his finger to both referee Dean Whitestone and his assistant.
Dagenham & Redbridge said they would await the outcome of any police investigation and were unsure as to whether the incident was included in the referee's report which will be submitted to the Football Association.