Effross requires Tommy John surgery, which will presumably keep him out for all of next season, Jack Curry of YES Network reports.
Effross was one of the Yankees' key trade deadline acquisitions and went on to save three games while posting a 2.13 ERA for his new team. He was poised to be one of the team's key high-leverage relievers this postseason, and his absence leaves an injury-plagued unit with one more important spot to fill.