Penguins defenceman Kris Letang leaves the ice Thursday night after being injured in a third-period skirmish against Philadelphia. (Bruce Bennett/Getty Images)

Philadelphia Flyers winger Scott Hartnell will not be disciplined by the NHL for allegedly biting the right ring finger of Pittsburgh Penguins defenceman Kris Letang late in Thursday night's game, CBCSports.ca has learned.

"We participated in a disciplinary hearing this [morning]. The verdict, no suspension, no fine," Hartnell's agent, Alan Walsh, wrote Friday afternoon in a text message to Hockey Night in Canada Radio host Jeff Marek.

The Penguins accused Hartnell of biting Letang's finger during a scrum with less than two seconds left in regulation of a 5-4 Pittsburgh victory at Philadelphia.

Sources told cable sports network TSN that referees Eric Furlatt and Dean Morton along with linesmen Don Henderson and Jean Morin did not see the alleged incident and as such, there was insufficient evidence to further penalize Hartnell.

Hartnell told reporters he did not bite Letang, adding that "a lot of stuff happens on the bottom of the pile. He had his hands in my face doing the face wash and we're rolling around. I can't say what happened."

Hartnell returned to the ice for practice Friday.

Upon hearing Friday's decision by NHL disciplinarian Colin Campbell, Letang would not comment on the incident, saying he did not want to focus on what happened but rather focus on Saturday's game against the Maple Leafs in Toronto.

Hartnell, who is seventh in team scoring this season with three points in four games, isn't the first Flyer to be accused of biting. Retired blue-liner Derian Hatcher was accused of biting New Jersey's Travis Zajac, but wasn't fined or suspended.

Last season, the NHL suspended Ottawa's Jarkko Ruutu two games for biting Buffalo Sabres tough guy Andrew Peters.