President of baseball operations John Mozeliak revealed Wednesday that Brebbia underwent Tommy John surgery three weeks ago, Jeff Jones of the Belleville News-Democrat reports.
This is a fairly significant blow to the Cardinals, as Brebbia has been a rock in the bullpen with a 3.14 ERA and 1.10 WHIP over the past three seasons. He was given a bigger role last year and came through, recording 12 holds while blowing only one lead in 66 appearances. Ryan Helsley, 25, will likely move up a rung on the ladder and take on a lot of Brebbia's work in the mid-to-late innings.