Roman Anthony and Marcelo Mayer. Marcelo Mayer and Roman Anthony. Talk about Boston Red Sox prospects and those are the first two names to roll off the tongue. But MLB.com this week identified what it called “each club’s most pleasant prospect surprise” and unearthed the name of a promising,

The Red Sox have taken their time with the two best prospects in their minor league system. Roman Anthony, an outfielder, and Marcelo Mayer, an infielder, are both top-10 prospects in all of baseball.

Both the way 22-year-old shortstop prospect Marcelo Mayer swings the bat and plays defense looks almost effortless to Red Sox first baseman Abraham Toro. “It kind of looks nonchalant,” said Toro, who played with Mayer in Triple-A Worcester before his call-up May 3.