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The general manager of Campanelli shoos away fans loitering outside of the batting cages.

The high school is next door. People are always looking at what's happening here.

Word has been getting around. Baseball fans can watch the sons of MLB royalty play on a baseball team about an hour away from Boston. Once there, they might see Hall of Famer David Ortiz helping players fine-tune their swings, Manny Ramirez demonstrating how to lay off the curve, or Pedro Martinez demonstrating how to throw a no-hitter.

The sons are familiar with the situation. Four members of the 2004 Boston RedSox team are attempting to follow in their footsteps. The Yankees were on the other side of the rivalry.

Father and son are inseparable in baseball history. This is nostalgic for a lot of people. At the reunions, we used to see each other. We are trying to make a name for ourselves by being able to play with each other and not watch our fathers play.

The five sons joined the team in order to improve their games. The futures collegiate baseball league gives players entering college and those playing at the Division I, II or III levels an opportunity to get consistent playing time from the end of May through the second week of August in a league of eight teams

He is the oldest at 21 years old and will be a senior at Lynn University next year. He is an incoming sophomore. Three of the four incoming freshmen are going to play at Miami Dade College, one is going to play at Tallahassee Community College and the other is going to play at Galveston College.

Jaden Sheffield (far left) is the son of Gary Sheffield, who played on the 2004 Yankees squad that famously fell to the fathers of his Brockton Rox teammates. Joon Lee/ESPN

The names on the roster make the games sell out. Before this season, the average attendance at the stadium was less than half of what it is today.

"It's definitely drawn a lot of attention, but I didn't plan on bringing the sons together," says the man. If they're like their dads, fans want to go see these kids. Kids will mail letters to the stadium asking for autographs while fans are there.

The sons don't mind at all. Since they were children, they've been targets of opposing teams and fans. He has been on a baseball field and heard jeers of "Who's Your Daddy".

Everyone has been told that you're never going to be your dad. We don't want to be our dads. People look up to you when they see that you are on a pedestal. We're all proud to be from the same place and we're trying to keep that going.

The sons say their critics live within.

You want to wear the last name well. I would really like to do that. It's a part of being proud. I don't want to be his son. You are not able to. If I can keep my dad's legacy going, that's a good thing.

"I really didn't understand how big [my father] was until he got into the Hall of Fame. ... Like, that's Mookie Betts talking to him like he's someone cool, treating him like he's royalty. Why is this guy talking to my weird, dork dad? He spends his time at home taking care of his flowers." Pedro Martinez Jr.

Their fathers also expect a lot from their sons and hold them to high standards.

If you hit a home run, your parents will get angry, Ramirez says. If we hit a home run and watch it, they're going to ask what we're doing. You should run the bases. I'm trying to do what you did to the pitchers. You taught me how to use this. You used to make a lot of money pimping home runs.

His father would hit you.

"I think his dad hit my dad at one point, that's what I think," he said.

They all know there are benefits to having a famous father.

Foulke's father has dealt with any problem he has in baseball. He will tell me how to fix my problem.

Manny and Ortiz give Pedro a lift. Sound familiar? Joon Lee/ESPN

The summer ball is a chance for the team to grow, but there is still room for improvement. It's too early to tell if any of the Sons will make it to the majors. Through the first 22 games of the summer, Ortiz has a.270 batting average with 14 runs and 19 walks. The four hitters are hitting.250/.372/.279. Foulke has allowed six runs in 623 of work.

Their time together has taught them a thing or two. As a kid, Ramirez didn't know that his dad was a baseball star. Foulke, who grew up in Texas and Florida, didn't know his father was a Boston legend. He used to be confused about why so many people respected his father.

The best and worst of baseball's latest fashion trend can be found on the South Side and Wrigleyville. There is a person named Joon Lee.

I didn't know how big he was until he was in the Hall of Fame. He was doing strength training with me and I saw my favorite players treat him like royalty. Mookie Betts treated him like royalty by talking to him like he was cool. I don't understand why this guy is talking to my dad. He takes care of his flowers.

The sons feel less lonely because of their teammates. They've never been around so many people with the same life experiences.

You don't have to say it. He knows. We all have similarities to each other. We are all connected. All of us are tied together in history. It's not possible to break that.

Sheffield, Ramirez Jr., Martinez Jr., Ortiz and Foulke will play this fall at Georgetown University, Tallahassee Community College, Lynn University, Miami Dade College, and Galveston College, respectively. Joon Lee/ESPN