The Boston Red Sox have called up two of their top prospects this season, but outfielder Roman Anthony remains stuck with Triple-A Worcester. As fans await the day when the 21-year-old is finally promoted to make his MLB debut, there’s now some insight on when the call-up may come.

Roman Anthony had the chance to watch his teammate reach a major milestone on Saturday. Boston Red Sox third baseman Marcelo Mayer, the No. 8 overall prospect according to MLB.com, blasted his first home run in the majors against the New York Yankees on Friday.

Mayer’s home run is the lone positive for Boston so far in this game. The Sox trail 8-1 in the sixth inning. The Yankees pounded starter Walker Buehler for seven runs (five earned), seven hits, two homers and two walks in the first two innings.