Ramirez, 27, is a 6’4″ righty who made his major league debut with the Cubs in 2014. He made 77 appearances for Chicago over the past two seasons, going 4-3 with a 2.20 earned run average. In eight relief outings this season, Ramirez posted a 4.70 ERA, striking out ten in 7.2 innings of work.
Walsh was a Rule 5 Draft choice by the Brewers last December and made the team out of Spring Training but struggled in limited action with Milwaukee, collecting just four hits in 63 plate appearances. If Walsh clears waivers, he will be offered back to Oakland. If the A’s decide to keep him they will return $25,000 to the Brewers and if they opt not to, Milwaukee could then send Walsh to Triple-A Colorado Springs.
The team also announced a handful of rehab assignments in recent days, sending outfielder Domingo Santana to Double-A Biloxi, relief pitcher Corey Knebel to High-A Brevard County and starting pitcher Matt Garza to Low-A Wisconsin. All three players will make appearances this week before eventually returning to the Brewers.