Steven Wright thought he was simply breaking up the monotony of another mundane bullpen session.

Little did he know, he was reinventing himself.

It was 2010, and Wright had been struggling in the minors with the Cleveland Indians. Near the end of a between-starts tune-up with Double-A Akron pitching coach Greg Hibbard, he fooled around by floating a few knuckleballs that left the catcher scrambling.

“Everybody thinks they have a knuckleball,” said Wright, traded to the Red Sox last year. “It was one of those things that, I threw a few up there and didn’t think anything of it.”

But Hibbard was intrigued. A few days later, after taking with player-development personnel, he asked Wright to throw only knuckleballs during a 40-pitch bullpen session.

“I told him no,” Wright recalled. “I was like, ‘I don’t want to be a knuckleballer. I don’t like where this is going. I feel like I can still compete with what I’ve got.’ ”

Three years later, at age 28, Wright is a full-fledged knuckler, and the pitch — once perceived as only a gimmick for down-on-their-luck pitchers to attempt to revive their careers — may well land him in the majors with the Red Sox at some point this season.