Miami Marlins right fielder Magneuris Sierra bats during the first inning of a spring training baseball game against the St. Louis Cardinals at Roger Dean Chevrolet Stadium on Friday, February 23, 2018, in Jupiter.
Miami Marlins right fielder Magneuris Sierra bats during the first inning of a spring training baseball game against the St. Louis Cardinals at Roger Dean Chevrolet Stadium on Friday, February 23, 2018, in Jupiter. David Santiago dsantiago@miamiherald.com
Miami Marlins right fielder Magneuris Sierra bats during the first inning of a spring training baseball game against the St. Louis Cardinals at Roger Dean Chevrolet Stadium on Friday, February 23, 2018, in Jupiter. David Santiago dsantiago@miamiherald.com

He’s one of the game’s fastest base runners. Could this Marlins rookie become an elite base stealer?

March 04, 2018 01:36 PM