The Giants optioned Marte to Triple-A Sacramento on Saturday.
The Giants won't need Marte for the rest of the year following his start Friday, so they'll send him down in order to bring in more bullpen depth in the form of Seth Lonsway. The 23-year-old Marte will finish the year with a 4.44 ERA and 1.40 WHIP over 24.1 innings after making the jump from Double-A directly to MLB in late August.