Now here's a player who made an improbable position change. Biggio began his 20-year career when he arrived with the Astros in 1988 as a catcher
. In 1990, he started 101 games at catcher, but also got 44 starts in the outfield. Then, in 1992, he made the biggest transition, moving to second base in part because he had become such a valuable offensive player that the Astros wanted to save him some wear and tear. The career-long Astro remained at second until 2004, when he moved to the outfield after the team acquired slugger Jeff Kent. Biggio compiled 3,060 hits before retiring after the 2007 season.
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