Menez was optioned to the Giants' alternate training site Wednesday, Andrew Baggarly of The Athletic reports.
Menez has allowed just three earned runs in 11.1 innings for the Giants this season, giving him a 2.38 ERA to go with a 0.97 WHIP, though his 8:5 K:BB is rather unremarkable. He'll have a good shot to return to the roster in the near future when the Giants need another arm in the bullpen.