![Checking in at Mariners spring training](https://www.usatoday.com/gcdn/presto/2023/02/25/USAT/eb7ae233-88f9-4046-8ae5-b6dc7ac5fa8d-machado.jpg)
New MLB rules (mostly) ace first spring training baseball test
![Checking in at Mariners spring training](https://images.seattletimes.com/wp-content/uploads/2022/06/06222022_Haniger_162738.jpg?d=780x520)
Mitch Haniger working hard to rejoin Mariners, still on same
![Checking in at Mariners spring training](https://www.northcentralcollege.edu/sites/default/files/styles/full_image_large/public/2019-05/at_intern.jpg?itok=lRrlidUT)
Shota Sato '19 hits a grand slam with Seattle Mariners athletic
![Checking in at Mariners spring training](https://www.rvonthego.com/images/spring-training/2024STLandingPageHeaderMain.jpg)
Spring Training
![Checking in at Mariners spring training](https://lookaside.instagram.com/seo/google_widget/crawler/?media_id=2808446433965709903)
MLB's No. 3 prospect Julio Rodríguez has been pumping out content
![Checking in at Mariners spring training](https://tripswithtykes.com/wp-content/uploads/2020/03/Cactus-League-Spring-Training-Hohokam-Stadium.jpg)
Arizona Spring Training 2023: Tips for Cactus League Baseball
![Checking in at Mariners spring training](http://sports.mynorthwest.com/wp-content/uploads/2020/03/evan-white-getty-2019-620.jpg)
Checking In: What the Mariners' top 4 prospects are doing in
![Checking in at Mariners spring training](https://a.espncdn.com/photo/2023/0226/r1136704_1296x729_16-9.jpg)
MLB spring training 2023 - What to watch in games on ESPN - ESPN
![Checking in at Mariners spring training](https://www.thenewstribune.com/latest-news/9m19sr/picture240500656/alternates/LANDSCAPE_1140/_DSC7022.jpg)
How to watch, listen to Seattle Mariners spring training games
![Checking in at Mariners spring training](https://img.mlbstatic.com/mlb-images/image/upload/t_2x1/t_w1536/mlb/vonplvlmvkmnjljfhxst.jpg)
Mariners Spring Training 2023 recap