Now, after 22 major league seasons, The Big Unit is walking away from baseball as one of the game's greatest pitchers.
The 6-foot-10 Johnson announced his retirement on a conference call Tuesday, a decision that had been expected from the overpowering left-hander who reached 300 wins last June.
"I really wanted to go out on my terms," Johnson said. "I just feel like there's not a lot more for me to do in this game. I just think it's a natural progression when you play this long. Eventually you have to say it's time."
Crasnick: Farewell, Big Unit
Rather than squirm behind a microphone and a podium, Randy Johnson did it his way. He called it quits on a conference call, and his timing was fitting, writes Jerry Crasnick. Story
A five-time Cy Young Award winner, the 46-year-old Johnson accomplished just about everything in his remarkable career that a player hopes for in baseball.
He owns a World Series ring and co-MVP honors, and was a 10-time All-Star. He threw two no-hitters, including a perfect game, and ranks second on the career strikeout list.
Johnson finishes with a record of 303-166 and 4,875 strikeouts in 4,135 1/3 innings for Montreal, Seattle, Houston, Arizona, the New York Yankees and San Francisco. His strikeouts are the most by a left-hander and second to Nolan Ryan's 5,714.
"It's all been a bit of a whirlwind. I never really got caught up in what I did," Johnson said. "I never really dwelled on my achievements. They're nice. Maybe now I'll be able to reflect on them."
Johnson overcame several injuries to keep pitching effectively into his mid-40s. He said before last season ended that he looked forward to going home to Arizona and spending time with his family before making a decision about his future.
A Storied Career
At age 46, Randy Johnson has called it quits. In 22 seasons, the Big Unit has celebrated five Cy Young Awards, 10 All-Star nods, one World Series championship and 303 wins. Here's a look at his career by team:
Team Years W-L ERA
SEA 10 130-74 3.42
ARI 8 118-62 2.83
MON 2 3-4 4.69
NYY 2 34-19 4.37
SFG 1 8-6 4.88
HOU 1 10-1 1.28
"It's taken this long into January because I definitely wanted to just kind of relax from the season being over and make sure I had a clear head when I made this decision, and that I would be making it wholeheartedly and would be sticking to it," he said.
Johnson went 8-6 with a 4.88 ERA in 17 starts and five relief appearances for San Francisco last season despite missing more than two months with a strained left shoulder that also had a tear in the rotator cuff. He returned in late September as a reliever, a role he couldn't see himself embracing in order to keep pitching.
His final strikeout came on the season's final day at San Diego, against Adrian Gonzalez to end the seventh inning. Johnson said he developed a better appreciation for relief pitchers last year.
"My 40s have really been learning years," he said. "The last five years of my career, there's been a lot there to sift through, a lot of ups and downs, some great moments in my career and some moments that got my head scratching."
Johnson came out of a game July 5 against Houston with an injury, the first serious shoulder problem of his career. He felt something in his arm on a swing during that start but initially tried to pitch through it. He left the game after committing a throwing error in the fourth inning.
He was on the disabled list from July 6 to Sept. 16, marking the 10th DL stint of Johnson's career. He had four knee operations and three back surgeries, but worked his way back each time.
"This isn't a tall man's sport -- basketball is," Johnson said.
But by the time he was done, he had a Hall of Fame resume.
Johnson signed with his hometown Giants before last season to try to help them reach the playoffs. They stayed in the NL wild-card chase well into September but missed the postseason for a sixth straight year.
Pitching in San Francisco, Johnson was only about 40 miles west of where he grew up in Livermore.
"The entire San Francisco Giants organization would like to salute Randy Johnson on a brilliant Hall of Fame career and congratulate him on his retirement," the team said in a statement. "He has been a tremendous champion of this great game, escalating to heights that few have reached. He will go down as one of the greatest pitchers in the history of the game."
He largely stayed to himself in his final season, insisting the 300-win milestone wasn't his top priority. Then on June 4 at Washington, he became the 24th pitcher in big league history to accomplish the feat.
Johnson pitched his first no-hitter in 1990, won 19 games with 308 strikeouts in 1993 and led the Mariners to their first playoff berth with an 18-2 record in 1995. He finished his 10-year stint in Seattle with a 130-74 record before being traded to Houston in 1998.
He signed as a free agent with the Diamondbacks before the following season, beginning one of the most dominating runs a pitcher has ever had. Johnson won the Cy Young in each of his first four seasons with Arizona, capturing the coveted pitcher's triple crown in 2002 with a 24-5 record, 2.32 ERA and 334 strikeouts.
His most memorable moments were in 2001, when he came out of the bullpen to beat the Yankees in Game 7 of the World Series to give the Diamondbacks the title. He went 3-0 in the Series, sharing the MVP award with Curt Schilling.
At age 40, Johnson pitched a perfect game against Atlanta.
He didn't have as much success after leaving Arizona for the first time following the 2004 season. He won 34 games in two seasons with the Yankees, although the tenure was marred by a run-in with a camera man and postseason struggles.
He returned to Arizona in '07 and won 15 games in two years while struggling with back problems.
"I never thought I was going to play this long. I'm blessed that I did," he said, adding that he plans to coach someday.
Johnson has a one-year service agreement to work in some capacity for the Diamondbacks.
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