In 1990, the Yankees paid a signing bonus of $2,000 to acquire a young shortstop from an amateur baseball team in Panama. Mariano Rivera had never even considered a career in baseball until he became a Yankee. Now, he is considered the best postseason closer - and perhaps the best closer - of all time, as well as one of the main reasons the team won four World Series titles between 1996 and 2000, and lost one in 2001. In close games, Rivera's clutch saves have secured both wins and the Yankees' continued appearances in the postseason. Off the field, Rivera has been recognized for his philanthropic work in the United States and Panama alike. In Mariano Rivera, read the story of the man who grew up playing baseball with a homemade cardboard glove in a small fishing village to become the Yankees' beloved Mo through hard work and natural talent.