Former Steelers linebacker James Harrison said Wednesday he asked the Steelers on three separate occasions to release him, including at the beginning of the season and after the loss to the New England Patriots 10 days ago, when it became apparent he wasn’t going to play as much as he was promised. Harrison, the Steelers’ all-time sack leader and former NFL defensive player of the year, said he isn’t mad or upset the Steelers released him Saturday, calling it “a business decision.” But he added that he had to make a business decision, too, and did when he signed with the Patriots on Tuesday — a decision he admitted to making with some hesitation because of what the Patriots have represented to the Steelers. “I have to assume when they say you’re going to get 25 percent of the snaps and you get 25, safe to say things didn’t go as planned,” Harrison told the Pittsburgh Post-Gazette on Wednesday. “After the first week of the season, I said to them, it’s clear you want to play your younger guys and I understand, so why don’t you release me. You go on your way and I’ll go on mine. They said, ‘No, no, no, we got a role for you.’ ” But that role never materialized for Harrison, except for a Week 6 game in Kansas City where he played 15 snaps and registered his only sack at a key moment late in the game to close out a victory. He played only 40 snaps all season, was inactive for six games and did not play in three others.