Houck was optioned to Boston's alternate training site Wednesday, Chris Cotillo of The Springfield Republican reports.

EDGE Analysis

Houck was competing for a back-end rotation spot during spring training, but manager Alex Cora named his five-man rotation Tuesday. Houck wasn't included among the starters, and he should begin the year with Triple-A Worcester. The right-hander made three appearances (one start) this spring and allowed six runs on six hits and 10 walks while striking out four over 6.1 innings.