Red Sox manager Alex Cora confirmed Monday that Whitlock will serve as a piggyback pitcher behind fifth starter Rich Hill to begin the season, Sean McAdam of BostonSportsJournal.com reports.

EDGE Analysis

According to Alex Speier of The Boston Globe, Cora has said the goal is to get more than 70 innings out of Whitlock for the second year in a row, and deploying the 25-year-old as a quasi-sixth starter rather than a traditional reliever should help accomplish that. The arrangement should also help ease the burden on the 42-year-old Hill, who is coming off a season with the Rays and Mets in which he covered 158.2 innings but otherwise hasn't been durable for the majority of his career. Since Whitlock has been steadily increasing his pitch count throughout the spring, he's expected to be available for an extended relief outing behind starter Nathan Eovaldi in Thursday's Opening Day game against the Yankees, per Ian Browne of MLB.com. With the benefit of a team off day Friday, Whitlock should then be ready to pitch on four days' rest when Hill's first turn in the rotation comes up April 12 in Detroit.