A large majority of Red Sox fans here at Fenway Park stood for Marcelo Mayer‘s first major league at-bat Saturday. Meanwhile, Roman Anthony crushed a 116 mph homer at Worcester.

Marcelo Mayer, Boston’s No. 2 overall prospect, was promoted to the Red Sox and needed to get a ride to Fenway Park to start against the Baltimore Orioles on Saturday night for his major league debut.

After third baseman Alex Bregman was moved to the injured list with a significant quad injury, the Red Sox immediately brought up top prospect Marcelo Mayer as his replacement. Mayer is one of the highest-ranked youngsters in all of baseball and there's reason to hope he can keep the team in the race while Bregman recovers.