Giants optioned RHP Emmet Sheehan to Triple-A Oklahoma City.

Technically, Sheehan could be brought back later this week to take the ball against the Giants in place of an injured Blake Snell (groin), but that would require another player, not necessarily Snell himself, to go on the injured list. The 26-year-old righty struck out nine over 5 1/3 shutout frames against San Francisco on Sunday. He’s been temporarily demoted to get Roki Sasaki back on Los Angeles’ active roster.,