Kristian Campbell, Marcelo Mayer and Roman Anthony could soon be fixtures in Boston's lineup -- and the test case for a ...

Boston Red Sox infield prospect Marcelo Mayer went 2-for-7 with a home run and seven RBI during their contest against ...

After being promoted to Triple-A Worcester last summer, but not playing due to an injury, Marcelo Mayer hits on a few of his ...

Kristian Campbell, Roman Anthony and Marcelo Mayer have spent hundreds of hours ... "I hope it has ball flight, too," Campbell said. Download the ESPN app and enable Jeff Passan's news alerts ...