Right-hander Aldo Ramirez ‘most underrated’ prospect in Red Sox farm system, according to MLB front offices

Regarded by SoxProspects.com as Boston’s No. 10 prospect (No. 5 among pitchers), Ramirez was one of the stars of the club’s fall instructional league in Fort Myers.

The 19-year-old hurler, originally signed out of the Mexican League for $550,000 in 2018, “was the consensus top pitcher at Red Sox Fall Instructs,” according to SoxProspects‘ director of scouting Ian Cundall.

“Ramirez sat 92-95 mph [with his fastball], with a potential plus changeup at 85-89 mph and average curveball at 77-81 mph,” Cundall wrote of the young righty last month. “His changeup is a potential weapon and could develop into a plus-to-better pitch given he already shows advanced feel for it and has a lot of confidence in it.”

Bowden gave the following scouting grades (20-80 scale) for each of Ramirez’s three pitches as well as his control and command:

Fastball: 60
Curveball: 55
Changeup: 50
Control: 50
Command: 45

After missing out on a minor-league season to further continue his development in 2020 due to the ongoing COVID-19 pandemic, Ramirez — who is listed at 6-foot, 180 lbs. — is projected to begin the 2021 campaign with Low-A Salem as a member of their starting rotation.

A starting role is one the fiery right-hander could maintain for the foreseeable future, too.

“[Ramirez] has a very good chance to remain a starter and has already shown solid strike-throwing ability,” Cundall added. “[He] was on the younger side of the arms in camp but is remarkably polished for his age and gives the Red Sox someone to dream on as a back-end starter with a chance for more given his youth and constantly improving stuff.” 

(Photo of Aldo Ramirez: Kelly O’Connor/sittingstill.smugmug.com)