They needed to clear a spot on the 40-man roster for Isan Diaz. Shafer was claimed off waivers just after Opening Day and allowed eight runs over five appearances before being optioned a few weeks ago.

Shafer was just knocked around in back-to-back games, so the Marlins wanted a fresh arm for their bullpen. Brandon Leibrandt and Brett Eibner are joining the club Tuesday.

Shafer was just designated by the Reds a few days ago. The Reds have had their own issue with COVID in recent days, but now he's headed to a team with a legitimate outbreak. The 27-year-old posted a 3.86 ERA and 39/25 K/BB ratio over 39 2/3 innings with the Blue Jays last year.

The club wanted to free up a couple spots on the 40-man roster and Shafer is one of the casualties. He was acquired from the Blue Jays for cash over the offseason.