As we’ve noted elsewhere in this space, the Pirates have discussed the possibility of an extension with Jordy Mercer. It doesn’t look like talks have been extensive, and it doesn’t look like a deal is close. But an extension for Mercer would be surprising if it happened.
Now, a couple quick caveats. Any everyday player could theoretically be a good extension candidate on the right terms. If the Pirates were to sign Mercer to an extremely team-friendly deal, it would be hard to take issue with that. Also, as Wilbur noted, it’s possible the Pirates simply reached out to Mercer about the possibility of a deal that would cover his last two arbitration seasons (2017 and 2018).