James Harrison is calling a career.

The former Steelers standout announced his retirement from the game on his Facebook and Twitter accounts on Saturday, saying it's now time for him to walk away from the sport.

"I have made the difficult decision to retire as of today," Harrison wrote. "My love for my family and the need to be there for them outweighs my desire to play the game. I have missed too many experiences with them because I devoted SO much time to my career. My love for the game isn't strong enough to make up for missing one more birthday or first day of school. I am retiring as a man who is truly grateful for all of his blessings. I am sincerely thankful to the people who have supported me over the years, first and foremost my family, the Rooney family and my Steeler family, also Mr. Brown, the Bengals organization and fans, and last but FAR from least, Steeler Nation. Thank you."

Harrison, undrafted out of Kent State of 2002, didn't get his career rolling until 2004. He soon became one of the NFL's most feared pass-rushers on some vaunted defenses in Pittsburgh.

He played 10 years with the Steelers, which included being a part of the Super Bowl XLIII championship team. In that game against Arizona, Harrison returned an interception 100 yards for a touchdown near the end of the first half.

After his time with Pittsburgh came to an end, Harrison played the 2013 season with the Bengals. He recently visited the Cardinals for a possible shot at joining their roster.

Harrison's career will conclude with 472 tackles, 66 sacks and six interceptions.

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