Alex Rodriguez: The player
Alex Rodriguez was drafted #1 overall to the Seattle Mariners back in 1993, from Westminster Christian School in Miami. He made his Major League debut in 1994, at the age of 18(!!!). He finished 2nd in MVP voting in 1996, when he led the league in runs (141), doubles (54), batting average (.358) and total bases (379). He played for the Mariners from 1993-2000, before he signed a record-breaking contract with the Texas Rangers (10YR/$252M).
A-Rod played in just 3 seasons for the Texas Rangers, before he wore out his welcome. He was then famously traded to the New York Yankees, where he changed positions from shortstop to third base. He also signed an extension with the Yankees in 2007, for another 10YR/$275M. At the time, those were the two biggest contracts in baseball history.
Statistically speaking, Alex Rodriguez is one of the best players in baseball history. There is no doubt about that. ARod his 696 home runs, the fifth most of ALL TIME. His 2086 RBI's rank 4th all time, and his 3115 hits rank him 22nd all time. He won 3 MVP awards, 2 Gold Gloves, 10 Silver Slugger Awards, won the batting title in 1996 and won the World Series in 2009 (The last Yankees World Series win).