![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://www.bostonherald.com/wp-content/uploads/2022/03/AP22075634544508.jpg?w=1024)
Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A
![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://www.nj.com/resizer/36nbU2onu1--R-DP01jJ4s5FRA4=/1280x0/smart/cloudfront-us-east-1.images.arcpublishing.com/advancelocal/AK4U6W3MVNEVHDY4TAJN3BQXDU.jpg)
MLB prospects guru takes Red Sox prospect over Yankees' Anthony Volpe
![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://i0.wp.com/couchguysports.com/wp-content/uploads/2023/03/Marcelo-Mayer-Drive-4.jpg.webp?fit=640%2C360&ssl=1)
Red Sox Top prospect Marcelo Mayer may get called-up to Boston
![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://img.mlbstatic.com/mlb-images/image/upload/t_2x1/t_w1536/mlb/lrxivpxso4zs7rtjenuk.jpg)
Red Sox promote top prospect Marcelo Mayer to Double-A
![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=709404457854992)
SoxProspects.com
![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://www.prospects1500.com/wp-content/uploads/2023/05/marcelo-mayer-greenville-drive-scaled.jpg)
Prospects of the Week: May 1 - May 7
![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://sportshub.cbsistatic.com/i/2022/12/17/23bdc9cd-b0cd-47d5-b2ad-e76da14a8387/dansby.jpg?width=320&height=180)
Boston Red Sox top prospects 2023: Marcelo Mayer leads list
![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://assets3.cbsnewsstatic.com/hub/i/r/2023/05/29/10abdfce-abfe-4138-b1ec-00b95b72ea8a/thumbnail/1200x630g2/c3d683f76fa86ef37ee264e3e2fc6600/marcelo-mayer.jpg?v=287f03e8b6c956e3847aad6c604a17dd)
Red Sox top prospect Marcelo Mayer promoted to Double-A - CBS Boston
![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://www.masslive.com/resizer/uz6j-HdS2fMBHk9WHR6oubtDDME=/arc-anglerfish-arc2-prod-advancelocal/public/QCAJIFSOXVDT5CX35LVWTBEJI4.jpg)
Boston Red Sox promote pitching prospect Brandon Walter (68 Ks, 3 walks) to WooSox; Marcelo Mayer returns from injury
![Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A](https://images2.minutemediacdn.com/image/upload/c_fill,w_1440,ar_16:9,f_auto,q_auto,g_auto/shape/cover/sport/bd33bb9e2436364a178e09fdabae3192512a402a3b0571ad539fd1a7ac505fc6.jpg)
Red Sox Rumors: Easy free agent target, Marcelo Mayer mashing, Tanner Houck shuffle