Giants promote pitcher Seth Lonsway for MLB debut in doubleheader
Yahoo Sports • 1 min read • Latest: Aug 29, 2026, 8:32 PM
Last updated Aug 29, 2026
The San Francisco Giants promoted right-hander Seth Lonsway from Triple-A Sacramento for his MLB debut on August 29, 2026, during a doubleheader against the Arizona Diamondbacks. Lonsway, 27, fills a spot in the rotation following injuries to Adrian Houser and Carson Whisenhunt. He has a 5.95 ERA across 75.2 innings in the minors. The Giants also designated Matt Wilkinson as the 27th man, who will start the first game of the doubleheader, with Lonsway likely to start the second. San Francisco, facing a challenging schedule, aims to evaluate its rotation depth amid current injuries.
- •Seth Lonsway promoted for MLB debut during doubleheader against Diamondbacks.
- •Adrian Houser and Carson Whisenhunt are out with injuries.
- •Matt Wilkinson designated as 27th man; he will start the first game.
- •Giants have lost two starters and need to assess pitching depth.
- •Team plays three games in two days to manage their schedule.
- 8:32 PMYahoo Sports — San Francisco Giants Promote 27-Year-Old Pitcher for MLB Debut During Diamondbacks Series
"The San Francisco Giants will have to play three games in two days, already exasperating a rotation problem. The club announced three transactions, including the promotion of right-hander Seth Lonsway. The #SFGiants made the following roster moves today: • RHP Spencer Bivens optioned to Triple-A Sacramento postgame yesterday.• LHP Seth Lonsway (#86) selected from Triple-A […] The post San Francisco Giants Promote 27-Year-Old Pitcher for MLB Debut During Diamondbacks Series appeared first on HEAV
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