Eovaldi (back) will begin a rehab assignment at Triple-A Worcester on Thursday, Bill Koch of The Providence Journal reports.
Eovaldi threw live batting practice Tuesday, and his fastball reached 96 mph during the session. In spite of his encouraging performance, he'll require at least one appearance in the minors prior to rejoining Boston's rotation. The Red Sox haven't yet revealed how many rehab appearances the right-hander needs, but it's possible he's able to make a start in the majors before the All-Star break, which begins July 18.