Watch: Former NFL player Jerome Harrison, healthy after brain tumor, shares message of hope

The former running back was diagnosed with a brain tumor in 2011 after it was discovered during a routine physical.

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Interested in getting MLB Tickets for this coming season? The New York Yankees are a professional baseball team based in the borough of the Bronx, in New York City, New York and are a member of Major League Baseball's American League East Division. Get your New York Yankees Tickets today!

The Baltimore Orioles Tickets are a professional baseball team based in Baltimore, Maryland. Since 1992, the Orioles have played their home games at Oriole Park at Camden Yards.

New York Mets Tickets: The New York Mets are a professional baseball team based in the borough of Queens in New York City, New York. The Mets are a member of the East Division of Major League Baseball's National League.

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The Toronto Blue Jays Tickets are a professional baseball team located in Toronto, Ontario, Canada.

The Seattle Mariners are an American professional baseball team based in Seattle, Washington. The Seattle Mariners Tickets are looking to be a good team this year.

Detroit Tigers Tickets: The Detroit Tigers are a Major League Baseball team based in Detroit, Michigan. One of the American League's eight charter franchises.

The Philadelphia Phillies Tickets are a Major League Baseball team based in Philadelphia, Pennsylvania. They are the oldest continuous, one-name, one-city franchise in all of professional American sports, dating to 1883. One of the biggest games of the season are the Phillies Red Sox Tickets. Another long time rival in the same state is Phillies Pirates Tickets.

The Chicago White Sox Tickets are a Major League Baseball team based in Chicago, Illinois. The White Sox play in the American League's Central Division.

The Atlanta Braves Tickets are a professional baseball team based in Atlanta, Georgia. The Braves are a member of the Eastern Division of Major League Baseball's National League.

The Texas Rangers are a professional baseball team in Texas, representing the Dallas-Ft.Worth metropolitan area. Get your Texas Rangers Tickets today!

San Diego Padres Tickets: The San Diego Padres are a Major League Baseball team based in San Diego, California.

Tampa Bay Rays Tickets: The Rays are a member of the Eastern Division of MLB's American League. Since their inception in 1998, the club has played at Tropicana Field.

The Florida Marlins were established in 1993 as an expansion franchise, the Florida Marlins Tickets are a member of the Eastern Division of Major League Baseball's National League.

San Francisco Giants Tickets are a Major League Baseball team based in San Francisco, California, who currently play in the National League West Division.

The Cleveland Indians are a professional baseball team based in Cleveland, Ohio. Cleveland Indians Tickets are in the Central Division of Major League Baseball's American League.

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The Philadelphia Phillies Tickets are a Major League Baseball team based in Philadelphia, Pennsylvania. They are the oldest continuous, one-name, one-city franchise in all of professional American sports, dating to 1883. One of the biggest games of the season are the Phillies Red Sox Tickets. Another long time rival in the same state is Phillies Pirates Tickets.

The Chicago White Sox Tickets are a Major League Baseball team based in Chicago, Illinois. The White Sox play in the American League's Central Division.

The Atlanta Braves Tickets are a professional baseball team based in Atlanta, Georgia. The Braves are a member of the Eastern Division of Major League Baseball's National League.

The Texas Rangers are a professional baseball team in Texas, representing the Dallas-Ft.Worth metropolitan area. Get your Texas Rangers Tickets today!

San Diego Padres Tickets: The San Diego Padres are a Major League Baseball team based in San Diego, California.

Tampa Bay Rays Tickets: The Rays are a member of the Eastern Division of MLB's American League. Since their inception in 1998, the club has played at Tropicana Field.

The Florida Marlins were established in 1993 as an expansion franchise, the Florida Marlins Tickets are a member of the Eastern Division of Major League Baseball's National League.

San Francisco Giants Tickets are a Major League Baseball team based in San Francisco, California, who currently play in the National League West Division.

The Cleveland Indians are a professional baseball team based in Cleveland, Ohio. Cleveland Indians Tickets are in the Central Division of Major League Baseball's American League.