Beltrán Ogilbio Pérez is a former Major League Baseball

Major League Baseball

Major League Baseball is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League...

 pitcher

Pitcher

In baseball, the pitcher is the player who throwsthe baseball from the pitcher's mound toward the catcher to begin each play, with the goal of retiring a batter, who attempts to either make contact with the pitched ball or draw a walk. In the numbering system used to record defensive plays, the...

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Originally signed as an undrafted free agent by the Arizona Diamondbacks

Arizona Diamondbacks

The Arizona Diamondbacks are a professional baseball team based in Phoenix. They play in the West Division of Major League Baseball's National League. From 1998 to the present, they have played in Chase Field...

 in , he was traded in to the Los Angeles Dodgers

Los Angeles Dodgers

The Los Angeles Dodgers are a professional baseball team based in Los Angeles, California. The Dodgers are members of Major League Baseball's National League West Division. Established in 1883, the team originated in Brooklyn, New York, where it was known by a number of nicknames before becoming...

 with Dioner Navarro

Dioner Navarro

Dioner Favian Navarro Vivas is a Venezuelan professional baseball catcher, who is a free agent.-New York Yankees:In 2000, Navarro was signed by the New York Yankees as an amateur free agent...

 for Shawn Green

Shawn Green

Shawn David Green is a former Major League Baseball player.Green was a 1st round draft pick and a two-time major league All-Star...

. In , he signed as a free agent with the Washington Nationals

Washington Nationals

The Washington Nationals are a professional baseball team based in Washington, D.C. The Nationals are a member of the Eastern Division of the National League of Major League Baseball . The team moved into the newly built Nationals Park in 2008, after playing their first three seasons in RFK Stadium...

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After pitching for the Harrisburg Senators

Harrisburg Senators

The Harrisburg Senators are a minor league baseball team based in Harrisburg, Pennsylvania. The team, which plays in the Eastern League, is the Double-A affiliate of the Washington Nationals....

, the Nationals' Double-A affiliate in the Eastern League, Pérez made his major league debut on September 2, , as a relief pitcher

Relief pitcher

A relief pitcher or reliever is a baseball or softball pitcher who enters the game after the starting pitcher is removed due to injury, ineffectiveness, fatigue, ejection, or for other strategic reasons, such as being substituted by a pinch hitter...

. However, he made his final three appearances of 2006 as a starting pitcher

Starting pitcher

In baseball or softball, a starting pitcher is the pitcher who delivers the first pitch to the first batter of a game. A pitcher who enters the game after the first pitch of the game is a relief pitcher....

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In 2007, Pérez again pitched for Harrisburg and also for the Columbus Clippers

Columbus Clippers

The Columbus Clippers are a minor league baseball team based in Columbus, Ohio. The team plays in the International League and is the Triple-A affiliate of the Cleveland Indians. The team is owned by the government of Franklin County, Ohio....

, Washington's Triple-A affiliate in the International League

International League

The International League is a minor league baseball league that operates in the eastern United States. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States...

. He logged 124 innings in 20 starts and two relief appearances, winning 7, losing 7, and recording a 4.57 ERA

Earned run average

In baseball statistics, earned run average is the mean of earned runs given up by a pitcher per nine innings pitched. It is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine...

. In 2008, Pérez once again pitched for Harrisburg, going 3-5 with a 6.41 ERA.

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