Ramón Antonio Rosso Mieses (born June 9, 1996) is a Dominican professional

baseball Baseball is a bat-and-ball games, bat-and-ball sport played between two team sport, teams of nine players each, taking turns batting (baseball), batting and Fielding (baseball), fielding. The game occurs over the course of several Pitch ...

pitcher In baseball, the pitcher is the player who throws ("Pitch (baseball), pitches") the Baseball (ball), baseball from the pitcher's mound toward the catcher to begin each play, with the goal of out (baseball), retiring a batter (baseball), batter, ...

for the

Rieleros de Aguascalientes The Rieleros de Aguascalientes (English: Aguascalientes Railroaders) are a professional baseball team based in Aguascalientes, Aguascalientes that competes in the Mexican League. Established in 1975, the Rieleros have won the Mexican League cha ...

of the

Mexican League The Mexican Baseball League (, or LMB, ) is a professional baseball league in Mexico. It is the oldest running professional sports league in the country. The league has 20 teams organized in two divisions, North and South. Teams play 114 games ...

. He has previously played in

Major League Baseball Major League Baseball (MLB) is a professional baseball league composed of 30 teams, divided equally between the National League (baseball), National League (NL) and the American League (AL), with 29 in the United States and 1 in Canada. MLB i ...

(MLB) for the

Philadelphia Phillies The Philadelphia Phillies are an American professional baseball team based in Philadelphia. The Phillies compete in Major League Baseball (MLB) as a member club of the National League (NL) East Division. Since 2004, the team's home stadium has ...

. Rosso made his MLB debut in 2020.

Career

Rosso was born in

Santo Domingo Santo Domingo, formerly known as Santo Domingo de Guzmán, is the capital and largest city of the Dominican Republic and the List of metropolitan areas in the Caribbean, largest metropolitan area in the Caribbean by population. the Distrito Na ...

Dominican Republic The Dominican Republic is a country located on the island of Hispaniola in the Greater Antilles of the Caribbean Sea in the Atlantic Ocean, North Atlantic Ocean. It shares a Maritime boundary, maritime border with Puerto Rico to the east and ...

to a Spanish father and a Dominican mother. He moved to Spain, pitching for CB Barcelona of the

División de Honor de Béisbol The Spanish Baseball League (formerly Division de Honor de Béisbol) is the highest level of baseball in Spain. The league is overseen by the Royal Spanish Baseball and Softball Federation (RFEBS). It is played principally on weekends. The teams ...

Los Angeles Dodgers

At 19, Rosso was signed by the

Los Angeles Dodgers The Los Angeles Dodgers are an American professional baseball team based in Los Angeles. The Dodgers compete in Major League Baseball (MLB) as a member club of the National League (baseball), National League (NL) National League West, West Div ...

for a signing bonus of $62,000 on July 2, 2015. He was released by the Dodgers a year later on July 15, 2016, and never pitched in a minor league game for the organization.

Philadelphia Phillies

Rosso was signed by the

, who had offered him a contract prior to his signing with the Dodgers, on June 2, 2017. He debuted for the Dominican Summer League Phillies, pitching to a 6–1

win–loss record Win–loss may refer to: * Win–loss analytics, analysis of the reasons why a visitor to a website was or wasn't persuaded to engage in a desired action * Win–loss record, also winning percentage * Win–loss record (pitching), the number of ...

with a 0.74

earned run average In baseball statistics, earned run average (ERA) is the average of earned runs allowed by a pitcher per nine innings pitched (i.e. the traditional length of a game). It is determined by dividing the number of earned runs allowed by the number ...

(ERA) in nine starts and earning a promotion to the

Gulf Coast League Phillies The Florida Complex League Phillies are a Rookie-level affiliate of the Philadelphia Phillies, competing in the Florida Complex League of Minor League Baseball. Prior to 2021, the team was known as the Gulf Coast League Phillies. The team plays i ...

. After striking out 13 batters with one earned run in nine innings pitched, Rosso was again promoted and finished the season with the

Williamsport Crosscutters The Williamsport Crosscutters are a collegiate summer baseball team of the MLB Draft League. They are located in Williamsport, Pennsylvania, and play their home games at Journey Bank Ballpark at Historic Bowman Field. From 1994 to 2020, they w ...

of the

New York–Penn League The New York–Penn League (NYPL) was a Minor League Baseball league that operated in the northeastern United States from 1939 to 2020. Classified as a Class A Short Season league, its season started in June, after major-league teams signed th ...

. He posted a 1–0 record with a 3.00 ERA and 23 strikeouts in 18 innings pitched with Williamsport. Rosso began the 2018 season with the

Lakewood BlueClaws The Jersey Shore BlueClaws (formerly Lakewood BlueClaws) are a Minor League Baseball team of the South Atlantic League and the High-A affiliate of the Philadelphia Phillies. They are located in Lakewood, New Jersey, and are named for their locat ...

of the

South Atlantic League The South Atlantic League, often informally called the Sally League, is a Minor League Baseball league with teams predominantly in states along the Atlantic coast of the United States from New York to Georgia. A Class A league for most of its h ...

, where he went 5–1 with a 1.33 ERA and 81 strikeouts in 12 starts and was named a league All-Star before being promoted to the

Clearwater Threshers The Clearwater Threshers are a Minor League Baseball team of the Florida State League and the Single-A affiliate of the Philadelphia Phillies. They are located in Clearwater, Florida, and have played their home games at BayCare Ballpark since 20 ...

of the

Florida State League The Florida State League (FSL) is a Minor League Baseball league based in the state of Florida. Having been classified at various levels throughout its existence, it operated at Class A-Advanced from 1990 until its demotion to Single-A following ...

. He pitched in 11 games with 10 starts for Clearwater and went 6–2 with a 2.91 ERA. Rosso began 2019 with the

Reading Phillies Reading is the process of taking in the sense or meaning of symbols, often specifically those of a written language, by means of sight or touch. For educators and researchers, reading is a multifaceted process involving such areas as word re ...

of the Double-A Eastern League, where he had a 3–2 record with a 3.15 ERA in ten starts before earning a promotion to the Triple-A

Lehigh Valley IronPigs The Lehigh Valley IronPigs are a Minor League Baseball team of the International League (IL) and the Triple-A affiliate of the Philadelphia Phillies. They are located in Allentown, Pennsylvania, and they are named in reference to pig iron, used ...

. He finished the season with Lehigh Valley and went 2–4 with a 5.50 ERA and 64 strikeouts. Rosso was invited to

Spring Training Spring training, also called spring camp, is the preseason of the Summer Professional Baseball Leagues, such as Major League Baseball (MLB), and it is a series of practices and exhibition games preceding the start of the regular season. Spri ...

by the Phillies in 2020. On July 24, 2020, Rosso made his MLB debut. He finished his rookie season with a 6.52 ERA in 7 appearances. Rosso pitched scoreless innings for the Phillies in 2021 before being

designated for assignment Designated for assignment (DFA) is a contractual term used in Major League Baseball (MLB). A player who is designated for assignment is immediately removed from the team's 40-man roster, after which the team must, within seven days, return the pla ...

on May 23, 2021. He cleared waivers and was sent outright to Triple-A Lehigh Valley on May 28. On September 1, the Phillies selected Rosso's contract, adding him back to their active roster. On November 5, Rosso was removed from the 40-man roster and sent outright to Triple-A, but he rejected the assignment and elected free agency.

Detroit Tigers

On March 14, 2022, Rosso signed a minor league deal with the

Detroit Tigers The Detroit Tigers are an American professional baseball team based in Detroit. The Tigers compete in Major League Baseball (MLB) as a member club of the American League (AL) American League Central, Central Division. One of the AL's eight chart ...

. He made only one appearance for the Triple–A

Toledo Mud Hens The Toledo Mud Hens are a Minor League Baseball team of the International League and the Triple-A affiliate of the Detroit Tigers. They are located in Toledo, Ohio, and play their home games at Fifth Third Field. A baseball team nicknamed the ...

, tossing a scoreless inning and recording one strikeout. Rosso was released by the Tigers organization on May 27.

Piratas de Campeche

On February 1, 2024, Rosso signed with the

Piratas de Campeche The Piratas de Campeche (English: Campeche Pirates) are a professional baseball team in the Mexican League (LMB) based in Campeche, Campeche, Mexico. History In 1980, the Alacranes de Durango moved to Campeche, and played their home games at Ven ...

of the

. In nine starts, he posted a 1–7 record with a 7.05 ERA and 33 strikeouts over 37 innings. On June 13, Rosso was released by Campeche.

Bravos de León

On June 20, 2024, Rosso signed with the

Bravos de León The Bravos de León (English: León Braves) are a professional baseball team in the Mexican League based in León, Guanajuato, Mexico. History Cachorros de León (1979–80) Mexican League baseball in León began in 1979 when the Alijadore ...

of the

. He made one start, giving up 4 earned runs in innings. On July 1, Rosso was released by León.

El Águila de Veracruz

On April 2, 2025, Rosso signed with

El Águila de Veracruz El Águila de Veracruz (English: The Eagle of Veracruz) is a professional baseball team that plays in the Mexican League. Based in Veracruz, Veracruz, Veracruz, Mexico, they play their home games at the Estadio Universitario Beto Ávila. Histor ...

of the

. In 15 appearances for Veracruz, Rosso struggled to a 7.43 ERA with 13 strikeouts and one save across innings pitched.

Rieleros de Aguascalientes

On May 26, 2025, Rosso was traded to the

of the

References

External links

{{DEFAULTSORT:Rosso, Ramon 1996 births Living people Águilas Cibaeñas players Baseball players at the 2020 Summer Olympics Baseball players from Santo Domingo Bravos de León players Clearwater Threshers players Dominican Republic expatriate baseball players in Mexico Dominican Republic expatriate baseball players in the United States Dominican Summer League Phillies players El Águila de Veracruz players Florida Complex League Phillies players Lakewood BlueClaws players Lehigh Valley IronPigs players Major League Baseball pitchers Major League Baseball players from the Dominican Republic Medalists at the 2020 Summer Olympics Naturalised sports competitors Olympic baseball players for the Dominican Republic Olympic bronze medalists for the Dominican Republic Olympic medalists in baseball Philadelphia Phillies players Piratas de Campeche players Reading Fightin Phils players Williamsport Crosscutters players Spanish baseball players 21st-century Dominican Republic sportsmen 21st-century Spanish sportsmen