Severino (lat) will start a rehab assignment Sunday with Double-A Trenton, Erik Boland of Newsday reports.

EDGE Analysis

Manager Aaron Boone previously suggested Severino could begin his rehab stint Sunday, and his 35-pitch, two-inning simulated game Tuesday proved to be the final hurdle before it became official. It's not fully clear how many minor-league games the 25-year-old is expected to require, but he should be ready to go fairly early in September since he's initially expected to work out of the bullpen.