Rodriguez won't start Opening Day against Baltimore as previously scheduled after experiencing a "dead arm" period, Alex Speier of The Boston Globe reports.
The 27-year-old battled his command during his last spring start Monday, and his struggles apparently stemmed from the dead arm issue. Rodriguez skipped his most recent bullpen session to get extra rest but may be able to retake the mound within the next couple days. The left-hander could slot into the back end of the rotation without actually missing a turn to open the season. Nathan Eovaldi will instead start Opening Day for Boston.