Rivera took a no-decision Saturday against the Mets, allowing no runs on one hit and two walks in 3.2 innings. He struck out three.
Making his second major-league appearance of 2026, Rivera fared well Saturday while giving up one single across 3.2 scoreless frames. The 23-year-old southpaw has impressed for the Red Sox in limited action this season, delivering seven shutout innings while yielding only two hits. Rivera was likely just making a spot start for Boston's banged-up rotation, as Connelly Early (elbow) and Ranger Suarez (groin) could both be back shortly following the All-Star break.