Boston Red Sox outfield prospect Roman Anthony recorded his first career home run at Fenway Park on Monday night, sending a 418-foot drive to straightaway center field. The blast marked the latest milestone for the 20-year-old, widely regarded as baseball’s top prospect, and drew an immediate ovation from the home crowd. Anthony entered the game riding a .315/.413/.426 slash line over his previous 15 contests, a run that has helped him solidify a regular spot in Boston’s lineup since his mid-season call-up. The Red Sox consider the left-handed hitter a key piece of their rebuilding core after he advanced rapidly through the club’s farm system.