Arizona Cardinals outside linebacker John Abraham made his long-awaited debut at training camp Thursday.

Excused by coach Bruce Arians for "personal reasons," Abraham was on the field with the team for the first time since he was charged with drunken driving in June. Abraham was arrested when he was discovered by patrolling officers passed out behind the wheel of his car in the center of a lane on a suburban Atlanta road.

"First, I want to apologize to my family and friends, the Cardinals organization, my teammates and the fans for letting them down," Abraham said in June. "I understand the significance of my actions and right now I am taking the necessary steps to handle my personal business. I am very thankful for the support from my family, friends and especially the Cardinals organization during this time in my life. I am looking forward to being back with my teammates in the near future."

General manager Steve Keim said at in July that the team was not concerned, adding "He'll be back at some point here."

Abraham had 11.5 sacks last season and has 133.5 in his career, which leads all active players. He also has 48 career forced fumbles.

Abraham has had other legal troubles in the past. In 2003, he pled guilty to driving while impaired after crashing his car into a fire hydrant and light pole in New York when he was with the Jets. In 2012, he was arrested for misdemeanor obstruction in Atlanta.

With the Cardinals, Abraham will be a central figure as an edge rusher.

The team is unsure if he will face NFL discipline, and if his court hearing is delayed as expected, punishment in the form of a suspension would be unlikely.