Overview

• The Giants promoted right-hander Trevor McDonald from Triple-A Sacramento and optioned right-hander Keaton Winn ahead of Tuesday’s game against the Diamondbacks.
• San Francisco’s relievers have been hit hard, allowing 19 earned runs over their last 14 innings during a three-game slide.
• Manager Bob Melvin is piecing together innings with a bullpen game, giving Tristan Beck the start while Carson Whisenhunt rehabs in Sacramento.
• McDonald, who made his lone MLB appearance in 2024, posted a 5.31 ERA with 144 strikeouts in 142.1 Triple-A innings and has recently worked six- and seven-inning outings.
• Roster churn follows months of bullpen attrition, with Erik Miller injured, Tyler Rogers and Camilo Doval traded, and Randy Rodríguez scheduled for Tommy John surgery.