![For Mariners pitching prospect Isaiah Campbell, less is more - The Athletic](https://prospectinsider.b-cdn.net/wp-content/uploads/2020/02/KirbyElon-920x425.jpg)
Mariners Top 50 Prospects: No. 4 — George Kirby, RHP
![For Mariners pitching prospect Isaiah Campbell, less is more - The Athletic](https://img.mlbstatic.com/mlb-images/image/private/t_2x1/t_w1536/mlb/rhxjs1pigpv0fnhplhsq.jpg)
Mariners preseason prospect overview
![For Mariners pitching prospect Isaiah Campbell, less is more - The Athletic](https://img.mlbstatic.com/mlb-images/image/private/ar_16:9,g_auto,q_auto:good,w_1024,c_fill,f_jpg,dpr_3.0/mlb/fkywfgihjndurcyrsdiv)
Mariners pitching prospects to watch 2023 Spring Training
![For Mariners pitching prospect Isaiah Campbell, less is more - The Athletic](https://cdn.theathletic.com/app/uploads/2022/02/09184506/AP21137047479828_1.jpg)
Mariners' top 20 prospects for 2022: Keith Law ranks Seattle's
![For Mariners pitching prospect Isaiah Campbell, less is more - The Athletic](https://img.mlbstatic.com/mlb-images/image/upload/t_16x9/t_w2208/mlb/trveagb1qcngwwifm5qz)
Mariners Top Prospects
![For Mariners pitching prospect Isaiah Campbell, less is more - The Athletic](https://staticg.sportskeeda.com/editor/2023/10/b286e-16973989484699-1920.jpg?h=320)
Isaiah Campbell Seattle Mariners: Who is Isaiah Campbell? Seattle
![For Mariners pitching prospect Isaiah Campbell, less is more - The Athletic](https://i.ytimg.com/vi/EG76plGIhPo/maxresdefault.jpg)
Mariners Arm SP Forces, Select Isaiah Campbell at 76 - Lookout Landing
![For Mariners pitching prospect Isaiah Campbell, less is more - The Athletic](https://cdn.vox-cdn.com/thumbor/07XNPTTiUdxQa_rt2OU5xTW5KDk=/1400x1400/filters:format(jpeg)/cdn.vox-cdn.com/uploads/chorus_asset/file/24803316/usa_today_21067858.jpg)
AJ Pollock hits 10-day IL with strained hamstring, Seattle
![For Mariners pitching prospect Isaiah Campbell, less is more - The Athletic](http://blogs.fangraphs.com/wp-content/uploads/2023/07/USATSI_20974756.jpg)
Seattle Mariners Top 32 Prospects