Mejia was added to the Giants' 40-man roster Friday, Andrew Baggarly of the Bay Area News Group reports.
A 50-game ban for testing positive for a stimulant kept Mejia off the mound until June, but he went on to post a 2.45 ERA and 1.09 WHIP in 12 appearances (nine starts) with Double-A Richmond. This amounts to a procedural move to protect Mejia from the Rule 5 draft, as it seems like a bit of a reach to think he could be a regular option for the big club in 2016, unless the team were to move him to the bullpen.