Schrock will begin the season on the 60-day injured list, Charlie Goldsmith of The Cincinnati Enquirer reports.
Schrock strained his left calf Sunday and was initially expected to miss 4-to-6 weeks. He'll now be forced to miss even more time than that, as he'll be ineligible for anything other than rehab games prior to early July. It's far from guaranteed that he'll earn a major-league roster spot once healthy, as he owns a 93 wRC+ in 64 career games at the highest level.