Aaron Bummer's 2026 season reads like a guy trying every door in the hallway. He got cut loose by the Braves after a disastrous outing, latched on with the Cubs on a minor league deal in May, worked his way up to Triple-A Iowa, and then opted out of that deal last week. Now he's got a new address: Kansas City signed him to a minor league pact and shipped him straight to Triple-A Omaha, according to Jon Heyman.
Jon Heyman broke the news that Bummer had already reported to Omaha.
Aaron Bummer agrees to minor league deal with Royals. Reported to Omaha today.
MLB Trade Rumors followed with the same report shortly after, which is usually the sign a minor deal is officially in the books rather than just a rumor floating around.
MLB Trade Rumors confirmed the Royals-Bummer agreement.
The financial wrinkle here is the actual story. Bummer is still owed roughly $9.5 million this year, and Atlanta is on the hook for that money after releasing him — meaning if the Royals ever call him up, they'd only owe him prorated league minimum, with that amount subtracted from what the Braves are already paying. It's about as close to a free lunch as a big league bullpen can get.
Bummer, 32, spent years as a reliable if unspectacular lefty specialist for the White Sox before a rough stretch in Atlanta got him shown the door. This season has been a mess by his standards, which is exactly why he's bouncing from org to org on minor league paper instead of a guaranteed roster spot.
For the Royals, this costs nothing but a roster spot in Omaha and buys a look at a guy who's had big league success before. Kansas City has been scouring for bullpen depth all summer, and a low-risk flier on a struggling veteran is the kind of move that either quietly pays off in August or gets forgotten by September. Either way, watch Omaha's box scores — that's where this one gets decided.