Arguably the best reliever on the market is headed to the Padres, whose beleaguered bullpen will get a huge boost from a revitalized Rosenthal.
The Royals are getting outfield prospect Edward Olivares and a player to be named if the deal, which is pending medicals, is completed as expected, sources told ESPN.
Rosenthal, 30, has a 3.29 ERA with 7 saves and 21 strikeouts in 13⅔ innings over 14 appearances this season. He has fared especially well against left-handed batters, striking out 16 of the 32 hitters he has faced and allowing just three hits and a .148 slugging percentage.
The Royals signed the former All-Star reliever to a $2.25 million deal after last season.
He was dismal with the Detroit Tigers and Washington Nationals in 2019, going 0-1 with a 13.50 ERA in 22 appearances with severe bouts of wildness. It was a far cry from his 2015 form, when Rosenthal had a 2.10 ERA and 48 saves while helping the St. Louis Cardinals to a 100-win season and the NL Central title.
Rosenthal has 128 saves and a 3.46 ERA over eight big league seasons. He also was part of the 2013 Cardinals team that lost to the Boston Red Sox in the World Series.
Olivares, 24, is a toolsy rookie who can play all three outfield positions and is the second talented-but-risky Padres outfielder whom the Royals have acquired this year after they traded for Franchy Cordero.
In 36 plate appearances, Olivares is hitting .176/.222/.294 with one home run and three RBIs.
ESPN’s Buster Olney and The Associated Press contributed to this report.