The Cleveland Guardians have landed one of the most fascinating starting pitchers available at the MLB trade deadline. Cleveland is acquiring All-Star left-hander Foster Griffin from the Washington Nationals, according to MLB.com’s Mark Feinsand. The return heading to Washington was not immediately reported.
Griffin gives the Guardians a proven starter in the middle of a career-best season. The 31-year-old is 12-3 with a 3.06 ERA, 1.07 WHIP and 116 strikeouts across 129 1/3 innings for Washington. Those numbers made Griffin a first-time MLB All-Star and one of the most attractive rental pitchers on the market.
Washington had reportedly considered attempting to sign Griffin to a contract extension, but Feinsand reported before the deadline that an agreement was “very unlikely.” Griffin is scheduled to become a free agent after the season, giving the Nationals an incentive to trade him rather than risk losing him for limited compensation during the offseason.
Foster Griffin gives Cleveland a major rotation upgrade
Griffin has made 22 starts this season, already exceeding his previous MLB career total before returning from Japan. The left-hander has allowed 109 hits and issued only 30 walks while recording 116 strikeouts. He has also been especially dependable away from Washington, producing a 3.20 ERA with 66 strikeouts across 70 1/3 road innings.
Breaking: The Nationals are trading All-Star LHP Foster Griffin to the Guardians, per source.
— Mark Feinsand (@Feinsand) August 3, 2026Griffin’s most recent start was one of his toughest outings of the season. He allowed six earned runs and nine hits over 5 1/3 innings against the Atlanta Braves on July 31. That performance did little to diminish the overall quality of his breakout year.
Griffin had allowed seven earned runs across his previous five starts combined. That stretch included seven innings of one-run baseball against the Athletics and seven innings with nine strikeouts against the Houston Astros.
He also faced the Philadelphia Phillies twice this season, recording 14 strikeouts without issuing a walk over 12 1/3 innings.
Griffin completed remarkable comeback after pitching in Japan
Griffin’s path to becoming a deadline prize was anything but conventional. The Kansas City Royals selected him with the No. 28 overall pick in the 2014 MLB Draft, but he struggled to secure a permanent major league role. Griffin later left affiliated baseball and spent three seasons with the Yomiuri Giants in Japan.
That decision transformed his career.
Griffin produced a 1.62 ERA across 14 appearances for Yomiuri in 2025 before signing a one-year, $5.5 million contract with Washington. The relatively modest investment became one of the best moves of the offseason once Griffin emerged as the Nationals’ most consistent starter. He was selected to the 2026 MLB All-Star Game and delivered a scoreless inning with two strikeouts.
Now Griffin will go from an unexpected reclamation success to a prominent role in Cleveland’s postseason pursuit.
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Nationals turn expiring contract into future value
Washington entered Monday at 55-58 after losing five consecutive games, leaving the club 12.5 games behind the Atlanta Braves in the NL East.
rading Griffin is a difficult decision because the Nationals remain within striking distance of a winning season. However, his expiring contract created the possibility that Washington could lose him during the offseason without receiving meaningful young talent in return.
The trade allows the Nationals to capitalize on Griffin’s enormous rise in value. For Cleveland, the motivation is entirely different. The Guardians are acquiring an experienced left-hander who has delivered All-Star production, limits walks and has already worked a career-high number of innings.
Griffin was barely on the national radar when the season began. Five months later, he has become the centerpiece of one of the deadline’s most significant pitching trades.

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