Veteran infielder Martin Prado appears to be preparing to call it quits, sources tell Jon Heyman of MLB Network (Twitter link). The 36-year-old reached the open market after wrapping up a three-year extension with the Marlins.

Prado was in the midst of a solid campaign when he re-upped with the Fish late in the 2016 season. It seemed at the time like a bit of a hefty guarantee, but not wildly out of whack for the value he might have commanded on the open market in the ensuing winter.