We don't often talk about Melvin Mercedes in this Prospect Watch series, because frankly he isn't much of a prospect. The infielder and New York native was a late-round pick back in 2012 and still hasn't played above High-A ball. He's 24 now, and he's yet to post an above-average batting line at a full-season affiliate -- this year, he's got a 93 wRC+ for Stockton, and even that is mostly thanks to a high walk rate rather than any actual hitting. But on Saturday, he was the star of the show.
As part of a pre-planned promotion, Mercedes played all nine defensive positions in one game on Saturday.