Justin Ryan Miller is an American former professional baseball pitcher. He played in Major League Baseball (MLB) for the Detroit Tigers, Colorado Rockies, Washington Nationals, and St. Louis Cardinals.

The Frisco RoughRiders are a Minor League Baseball team of the Texas League and the Double-A affiliate of the Texas Rangers. Based in Frisco, Texas, the team is named after the 1st U.S. Volunteer Cavalry Regiment during the Spanish–American War, headed by future American President Theodore Roosevelt, nicknamed "The Rough Riders" by the American press. They play their home games at Riders Field, which opened in 2003 and seats 10,316 people.