Whitlock (elbow) will likely join Boston's bullpen once he comes off the 15-day injured list, Jen McCaffrey of The Athletic reports.
The expectation is that Whitlock will go on a rehab assignment next week and return as a multi-inning reliever, similar to his role for the club in 2021. Whitlock has never topped 78.1 innings in a big-league season, and may fall shy of that mark again this year as he sits on 51.2 innings. Meanwhile, Tanner Houck (face) is expected to get stretched out and return as a starting pitcher.