If The Diamond was a movie theater instead of a ballpark, Heliot (pronounced “Elliott”) Ramos would be the likely marquee attraction.

Rather than a leading man, the 21-year-old Puerto Rico native is the swift, powerful leadoff hitter and centerfielder for the Richmond Flying Squirrels.

He’s also the highest drafted Squirrel, the highest rated by Major League Baseball and perhaps the one with the most upward mobility in the San Francisco Giants chain.

As a 17-year-old, Ramos began his pro career as San Francisco’s first round draft choice (18th overall) out of Leadership Christian Academy in Guaynabo, Puerto Rico.

The sports-specific school has produced 15 U.S. baseball pros since 2015. That includes shortstop Dilan Rosario, now in the Giants’ lower farm system.

Already in his fifth pro season (2020 was wiped out by pandemic), Ramos is a shining light throughout the Giants’ multi-tiered farm system. MLB. com rates him as the third top prospect in the San Francisco organization, behind only shortstop Marco Luciano and catcher Joey Bart.

Luciano started this season at Class A San Jose and is a possible future Flying Squirrel. Bart, a Flying Squirrel in 2019, is at AAA Sacramento and presumably the Giants’ catcher of the future.

It is reasonable to project Ramos as the Giants’ center fielder of the future.

Wearing jersey No. 14, the muscled, 6-foot ultra-prospect has made a bold statement atop manager José Alguacil’s lineup card.

While the “H” in Ramos’ name may be silent, his bat is loud. In the opening five games, Ramos was 8-for-18 (.444), while leading the Flying Squirrels in runs (eight), hits (eight), runs batted in (5), home runs (2) and slugging percentage (.889).

Squirrels fans may be wise not to park their vehicles too close behind the outfield fence, which has been moved in slightly from previous seasons.

The “Caribbean Crusher” has parking lot range in his right-handed swing. His drives have left the yard and vanished into the night in victories over the Hartford Yard Goats in games two and three of the first series.

Talent aside, Ramos is not a finished product. He also leads the team in strikeouts with five. In fact, he has fanned an alarming 307 times (compared to 88 walks) as a Giants farmhand.

Based on spring training play with the parent Giants in Scottsdale, Ariz., Ramos won the organization’s Barney Nugent Award as “Top Newcomer” to big league camp.

Ramos is a famous name around his hometown of Maunabo on Puerto Rico’s southeast coastline.

His older brother, Hector, 31, plays forward for Puerto Rico’s National Soccer Team. Another sibling, Henry, was a fifth round draftee of the Boston Red Sox in 2010 and has played outfield in several big league systems, including the Giants.

San Francisco scouts are no strangers to the island. The Giants have celebrated three World Series titles with Puerto Ricans patrolling centerfield.

Andres Torres roamed center on the Giants’ 2010 World Series championship team and Angel Pagan manned that spot on the 2012 and 2014 World Series kingpins.

Could Ramos be next in line?

If the Giants had a marquee at Oracle Park on The Bay, Ramos might be billed as the “Coming attraction.”