Nationals reliever Andrés Machado has gone unclaimed on waivers after being designated for assignment this week, the club announced. Machado has the right to refuse an outright assignment in favor of minor league free agency because he’s cleared waivers multiple times in his career. However, Mark Zuckerman of MASNsports.com tweets the right-hander will bypass the open market and join the Nats’ Triple-A club in Rochester.

Machado opened the season in Triple-A. He tossed 12 1/3 frames of five-run ball to earn a call back to the majors at the end of April. He couldn’t carry that success over against big league hitters. Machado allowed 16 runs over 17 MLB frames, surrendering a staggering six homers in the process. He’s out of option years, so the Nats had to take him off the 40-man roster to send him back to the minors.

The 30-year-old Machado has pitched in each of the last three seasons for Washington. He posted a sub-4.00 ERA in both 2021-22 but never had the peripherals to match that decent run prevention. Machado fanned less than 20% of opposing hitters in both years while walking opponents at a slightly higher than average pace. That led to him going unclaimed on waivers over the offseason and again clearing this week.

Washington has made a couple changes in the bullpen in the last few days. The Nats also designated veteran righty Erasmo Ramírez for assignment this morning. The pair of moves has dropped their 40-man count to 38.