Armenteros was non-tendered by the Astros earlier this offseason after missing the entire 2020 season while recovering from elbow surgery. The Diamondbacks initially claimed the right-hander off waivers, but he spent just over two weeks on their roster before being scooped up by Washington. The right-hander should be back to full health for spring training, when he'll most likely be competing for a spot in the Triple-A Fresno rotation. Armenteros previously made five appearances at the big-league level with Houston in 2019, posting a 4.00 ERA, 1.22 WHIP and 18 strikeouts in 18 innings.
Nationals' Rogelio Armenteros: Scooped up by Nats
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