Red Sox prospect Roman Anthony made his MLB debut at Fenway Park while his sister Lia went viral, gaining thousands of Instagram followers and receiving numerous DMs.

BOSTON — Roman Anthony, Baseball America’s No. 1 prospect, has been in the major leagues for less than a week but Red Sox star Alex Bregman has seen enough. “I think he’s gonna be one of the best hitters in all of baseball,” Bregman said before Boston’s 2-1 walkoff win in 10 innings over the Yankees on Saturday.

Alex Bregman praises top prospect and Red Sox rookie Roman Anthony for reaching a milestone he never has, even with years in the big leagues.

Anthony received the biggest cheer of all during pregame introductions and then a standing ovation when he came to bat in the second inning.

The Red Sox are trotting out a different-looking lineup Saturday with Roman Anthony sitting and someone other than Jarren Duran (who's hitting fifth) leading off.

Boston Red Sox manager Alex Cora has been sitting Mayer and Anthony against left-handed pitchers, but some are arguing that needs to change.

Roman Anthony's sister has spoken out after going viral during his debut and gaining thousands of followers overnight.

The Boston Red Sox promoted outfielder Roman Anthony to the majors, the team announced Monday. Anthony was in the starting lineup against the Tampa Bay Rays, batting fifth and manning right field. Wilyer Abreu landed on the injured list with an oblique strain.

The Boston Red Sox called up top prospect Roman Anthony two days after the 21-year-old outfielder hit a 497-foot grand slam for Triple-A Worcester.

For some, it might seem that Kristian Campbell, Marcelo Mayer and Roman Anthony have cleared the highest hurdle in their baseball journeys — making the leap between Worcester and the parent club in Boston.