Overview

• Hayden Birdsong was optioned after issuing four walks, hitting a batter and surrendering five runs without recording an out in his July 21 start, marking 17 walks over his last 13 innings.
• Right-hander Tristan Beck was also sent to Triple-A Sacramento following two recent outings totaling 65 pitches in three days.
• The Giants recalled prospect Carson Seymour, who owns a 3.86 ERA in 15 Triple-A starts, and Sean Hjelle, who returns after a nine-appearance big-league stint.
• Manager Bob Melvin labeled Birdsong’s control struggles “not ideal” and said the demotion resets his command work.
• The roster shake-up leaves an open fifth rotation spot as the Giants evaluate in-house arms and possible trade acquisitions before July’s deadline.