![Sea Dogs prospect Mayer, 20, focused on pitch selection -- and](https://img.mlbstatic.com/mlb-images/image/upload/ar_16:9,g_auto,q_auto:good,w_1024,c_fill,f_jpg,dpr_3.0/mlb/fpyuugtnblkbugqzqjz7)
Red Sox prospects form close relationships in Double-A Portland
![Sea Dogs prospect Mayer, 20, focused on pitch selection -- and](https://img.mlbstatic.com/milb-images/image/upload/t_2x1/t_w1536/milb/fgxly2utqzmnogf23qnk.jpg)
Red Sox promote top prospect Marcelo Mayer to Portland Sea Dogs
![Sea Dogs prospect Mayer, 20, focused on pitch selection -- and](https://w2pcms.com/wp-content/uploads/sites/10/2023/05/1022061081-Mayer.jpg?w=1024)
Red Sox promote top prospect Marcelo Mayer to Sea Dogs
![Sea Dogs prospect Mayer, 20, focused on pitch selection -- and](https://miro.medium.com/v2/resize:fit:1150/1*5Gh12rDQQYitHl4BsHP6NQ@2x.jpeg)
2023 Boston Red Sox Top 30 Prospects, by Sam Federman
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Marcelo Mayer Stats & Scouting Report — College Baseball, MLB Draft, Prospects - Baseball America
![Sea Dogs prospect Mayer, 20, focused on pitch selection -- and](https://i.ytimg.com/vi/yonHII7jmjg/hqdefault.jpg)
Red Sox Prospect Marcelo Mayer Called Up To Portland Seadogs
![Sea Dogs prospect Mayer, 20, focused on pitch selection -- and](https://bloggingtheredsox.files.wordpress.com/2023/07/20230630_6587-l.jpg?w=750)
portland sea dogs – Blogging the Red Sox
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A longtime Merrimack Valley resident, Sea Dogs manager Epperson enjoying life close to home, Sports
![Sea Dogs prospect Mayer, 20, focused on pitch selection -- and](https://w2pcms.com/wp-content/uploads/sites/10/2023/06/36336854_20230606_MarcelloMayer_02.jpg?w=1024)
Shortstop Marcelo Mayer makes debut at Hadlock Field in 6-2 Sea Dogs win
![Sea Dogs prospect Mayer, 20, focused on pitch selection -- and](https://bloggingtheredsox.files.wordpress.com/2023/08/drive_braves_07_04_23_gwinn_5648-3074489247-e1691615524528.jpg?w=1200)
Blogging the Red Sox – Page 2 – America's Most Beloved Red Sox Blog
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Sea Dogs announce 2023 team award winners
![Sea Dogs prospect Mayer, 20, focused on pitch selection -- and](https://portlandphoenix.me/wp-content/uploads/2023/07/Mayer_Marcelo_CM-9-300x200.jpg)
Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix
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Sea Dogs Super Powers Fall Short in 6-4 Loss