A rookie player for the San Francisco Giants has accomplished something notable. Jonah Cox is the player who achieved this feat. It is something that has not been done since Buster Posey.

Further information about this achievement is available from Yahoo Sports. They have reported on Cox's accomplishment, providing more details about what he has done.

The specifics of Cox's feat are not outlined here, but it is clear that it is a significant achievement, given the comparison to Buster Posey. For more information, readers can refer to the Yahoo Sports report.