![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://cdn.theathletic.com/cdn-cgi/image/width=1200,height=1200,fit=cover/app/uploads/2023/01/27220647/Top-100-Prospects.png)
Top 100 MLB prospects 2023: Keith Law's rankings, with Corbin
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://photos.smugmug.com/Portland-Sea-Dogs/Portland-Sea-Dogs-September-10-2022/i-ZjhmjtQ/0/c5654c47/L/20220910_2442-L.jpg)
SoxProspects News: September 2022
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://www.masslive.com/resizer/BepJ32jlgZ4LikIhxxjjS8w8XoY=/arc-anglerfish-arc2-prod-advancelocal/public/F7WF6Q7D65CGZDXRDQ4GFNTGKY.jpeg)
Boston Red Sox's Marcelo Mayer ranked No. 9 prospect on MLB
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://www.bostonglobe.com/resizer/s78fZSTA6mkTx2b-uEoLvmGJgrI=/arc-anglerfish-arc2-prod-bostonglobe/public/Z74BJZQ3IHD6XV36WF2YCGJGDQ.jpg)
Ranking the top 10 prospects in the Red Sox system heading into
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://www.justbaseball.com/wp-content/uploads/sites/2/2023/08/Top100-e1697473102279.jpeg?fit=768%2C378)
MLB Top 100 Prospects 2023: Final Update
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://bloggingtheredsox.files.wordpress.com/2022/04/20220328_5113-l.jpg?w=750)
salem red sox – Page 7 – Blogging the Red Sox
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://media.nbcsportsboston.com/2023/09/Holiday_Jrue_USATSI_20344712-e1695854026926.jpg?quality=85&strip=all)
20 Under 25 results: Mac Jones, Jayson Tatum heading in opposite
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://sportshub.cbsistatic.com/i/2023/02/14/2a09c60f-2162-4b61-b2ae-2a3422717a2f/fbtin5-2-13-23.jpg?width=320&height=180)
MLB prospect rankings: Top 50 players entering 2023; Gunnar
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://sportshub.cbsistatic.com/i/r/2022/01/07/893dc08c-570d-4481-9b6d-f95636e73f03/thumbnail/1200x675/2bc97483720b065e04bfd74f1e4048e7/julio-rodriguez.jpg)
Fantasy Baseball: Top 100 prospect rankings for 2022, led by Julio
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://sportshub.cbsistatic.com/i/2022/01/18/b50dd350-2a0b-436c-9c0b-7c90a46407a1/gettyimages-75987760.jpg?width=320&height=180)
Red Sox top prospects 2022: Marcelo Mayer and Triston Casas give
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://i.redd.it/marcelo-mayer-is-killing-it-in-the-minors-v0-2ur51s9lbhya1.jpg?width=4415&format=pjpg&auto=webp&s=da55b5ccc18607569a29aabf09bde1b52360723e)
Marcelo Mayer is killing it in the minors! : r/redsox
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://media.nbcsportsboston.com/sites/49/2023/03/OC_RED_SOX_OFFSEASON_FARM_SYSTEM_DIGITAL_1215211639595698711_600k_1920x1080_1984501315781.jpg?quality=85&strip=all&resize=1200%2C675)
Top 10 prospects reveal impressive strides of Red Sox farm system
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://www.masslive.com/resizer/YrG5RmPy0HE0HgfXnytyAb5Hcy8=/arc-anglerfish-arc2-prod-advancelocal/public/OZYCITJPM5BFPLN4RHT6SEV2TE.jpg)
Triston Casas, Marcelo Mayer lead Boston Red Sox 2022 top 15
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://cdn.theathletic.com/app/uploads/2022/01/02180957/GettyImages-1237116842-1024x683.jpg)
Red Sox organizational depth chart: Taking stock of the major
![20 Under 25 results: Marcelo Mayer, Triston Casas land in top 10](https://cf-images.us-east-1.prod.boltdns.net/v1/jit/6147775127001/bad03061-269e-44dc-8fca-474a02af23a5/main/1280x720/12m30s698ms/match/image.jpg)
Marcelo Mayer Reflects On Red Sox Spring Training Experience