Washington Nationals pitcher Javy Guerra John David Mercer-USA TODAY Sports

The Nationals announced they selected the contract of reliever Javy Guerra and recalled catcher Riley Adams from Triple-A Rochester. Righty Wander Suero was optioned to Triple-A, while catcher René Rivera landed on the 10-day injured list, retroactive to Aug. 2, with a right elbow contusion. Washington already had a pair of vacancies on the 40-man roster arising out of last week’s series of trades.

Guerra will make his season debut when he gets into a game, marking the 11th consecutive year in which he’s picked up some big league time. Guerra saw action with the Nats in each of 2019-20, tossing 69 1/3 innings of 4.67 ERA/4.55 FIP ball. The veteran righty has only struck out 18.5% of opponents over that stretch, but he’s been stingy with walks, doling out free passes at just a 6.4% clip.

The Nationals signed Rivera to a major league contract in mid-July, but he’s only picked up 15 plate appearances over the past couple weeks. While he’s out, he’ll be replaced by the 25-year-old Adams, who came over from the Blue Jays in exchange for Brad Hand in advance of last week’s trade deadline.

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