MILWAUKEE -- The Brewers released reliever Jesus Colome on Sunday to free a 40-man roster spot for an additional September callup to come Monday, assistant general manager Gord Ash said.

Colome spent 17 days on the disabled list with a right forearm strain before he was activated Friday and had not pitched since then. He would have been a free agent at season's end.

"Nothing out of the ordinary, other than we needed the space," Ash said. "[Colome] just wasn't consistent enough."

The Brewers signed Colome in July after he was released by the Nationals, and he struck out 11 batters in four scoreless appearances for Triple-A Nashville before a promotion to Milwaukee. In five games with the Brewers, he was charged with four earned runs in 6 1/3 innings for a 5.68 ERA.

The corresponding callup will be a pitcher, Ash said. He didn't name that pitcher, but candidates include Triple-A Nashville right-handers John Axford (26 years old, 9-1 with a 2.77 ERA in 45 appearances at three Minor League stops this season) and Dave Johnson (27 years old, 3-1 with a 3.72 ERA and five saves in 47 relief appearances at Nashville). Both Axford and Johnson would need to be added to the 40-man roster this winter anyway, to avoid being exposed to December's Rule 5 Draft.

Ditto for Double-A right-hander Josh Butler, a rising prospect who is slated to pitch in the Arizona Fall League. But the Brewers might not want to rob Huntsville of one of its best pitchers ahead of the Southern League playoffs.

Nashville, meanwhile, was eliminated from postseason contention on Saturday night and plays its season finale on Monday afternoon.