![Twenty-one years go, Randy Johnson made his Diamondbacks debut.](https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=208786353793065&get_thumbnail=1)
19 years ago today, Randy Johnson's - Arizona Diamondbacks
![Twenty-one years go, Randy Johnson made his Diamondbacks debut.](https://baseballhall.org/sites/default/files/styles/story_popup_thumb_540/public/Johnson%20Randy%20165-2009-103_Act_NBL%20Tringali.jpg.jpeg?itok=LZexVDzt)
Astros' deal for Johnson launched Big Unit's NL run of excellence
![Twenty-one years go, Randy Johnson made his Diamondbacks debut.](https://trojanempire.files.wordpress.com/2010/01/randy-johnson-1.jpg)
Randy Johnson pitching for the USC Trojans in 1984 : r/baseball
![Twenty-one years go, Randy Johnson made his Diamondbacks debut.](https://cdn.vox-cdn.com/thumbor/hziHE8l76RphA65VpjbXwkqD4fc=/669x32:1477x667/1200x800/filters:focal(869x163:1195x489)/cdn.vox-cdn.com/uploads/chorus_image/image/70710000/51985922.0.jpg)
The All-Time MLB Team, left-handed starting pitchers: Randy Johnson and Sandy Koufax - AZ Snake Pit
![Twenty-one years go, Randy Johnson made his Diamondbacks debut.](https://ballnine.com/wp-content/uploads/2021/07/Spitballin_RJ_Feature.jpg)
Randy Johnson - BallNine
![Twenty-one years go, Randy Johnson made his Diamondbacks debut.](https://www.si.com/.image/ar_1:1%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTY4MTk5NzU4NjI0MTM5MTM3/randyjohnson_120214jpg.jpg)
JAWS and the 2015 Hall of Fame ballot: Randy Johnson - Sports Illustrated
![Twenty-one years go, Randy Johnson made his Diamondbacks debut.](https://media-cldnry.s-nbcnews.com/image/upload/t_fit-1240w,f_auto,q_auto:best/msnbc/Components/Photos/040608/040608_randyJohnson_hmed_8p.jpg)
Big Unit used to throw, but now he pitches
![Twenty-one years go, Randy Johnson made his Diamondbacks debut.](https://arizonasports.com/wp-content/uploads/2016/07/103671.jpg)
ESPN: Former D-back Randy Johnson a top-25 all-time great
![Twenty-one years go, Randy Johnson made his Diamondbacks debut.](https://bvmsports.com/wp-content/uploads/2022/10/USATSI_13128576-e1665609136362.jpg)
Randy Johnson was a HOF pitcher; Now he's a photographer - BVM Sports