Pittsburgh Steelers assistant coach Joey Porter was released from jail on January 9, 2017, after he was brought in on multiple charges from his bar arrest after the team's NFL playoff win over Miami (AFP Photo/Kevin C. Cox)

Washington (AFP) - The Pittsburgh Steelers placed assistant coach Joey Porter on leave Monday after he was charged with assault in an incident at a bar hours after the team's NFL playoff win over Miami.

Porter, 39, was arraigned early Monday morning on a felony aggravated assault charge along with counts of simple assault, resisting arrest, disorderly conduct and trespassing. He was released from jail on a $25,000 bond.

"We are continuing to gather information concerning Sunday night's incident involving Joey Porter," Steelers general manager Kevin Colbert said in a statement. "We have been and will continue to be in communication with the NFL as is required by the Personal Conduct Policy.

"Pending further review, Joey Porter has been placed on leave. At this time, we will move forward with our preparations for the Divisional Round playoff game at Kansas City."

Porter was allegedly involved in an altercation with a doorman at The Flats on Carson, a popular nightspot in Pittsburgh.

Security guards at the bar summoned an off-duty police officer who was working at a nearby restaurant.

The officer witnessed Porter assault the employee of the bar on Sunday night, Pittsburgh police said.

Porter, in his third season on the team's coaching staff, was a star linebacker for the Steelers from 1999-2006 and played in 13 NFL seasons.

After their 30-12 win over the Dolphins in Pittsburgh in the first round of the playoffs on Sunday, the Steelers will travel to Kansas City to face the Chiefs next weekend.