The pending signing of Jose Reyes means the Marlins are planning to switch Ramirez to third base.
According to a report, Ramirez isn't comfortable with the move, and he's informed the Marlins of those sentiments.
"Hanley doesn't want to play third base, and the Marlins have been informed," a source told Enrique Rojas of ESPNdeportes.com. "More than asking for a trade, he's let them know that he doesn't want to play another position that's not shortstop."
The Marlins reached an agreement with Reyes on a six-year deal on Sunday, and he is expected to officially sign on Wednesday.
Andy Mota, one of Ramirez's representatives, said the report didn't come from the shortstop himself.
"Hanley will keep his matters with the club private," Mota said.
Earlier on Tuesday, Ramirez posted a tweet that addressed the speculation of his move to third base.
"What I am gonna do is work hard and get ready for next season because that is the only thing I can control," Ramirez said on Twitter.
In recent weeks, the Marlins informed Ramirez that they were seeking to sign Reyes.
"The whole trade thing is news to me," Beinfest said. "Not getting into all the ins and outs, I just will say that we've kept in communication with Hanley, and some of the things going on with the ballclub that possibly could affect him. The rest of it, we will keep within us.
"We kept him in communication because he is a key part of our team. We wanted him to know what we wanted to do in trying to bring good players around him to help him to win."
Making sure everyone on the team gets along and plays together is part of manager Ozzie Guillen's job. Guillen said the players will be fine and work together.
"[Management] did their part," Guillen said. "That's my job [making the team work]."
At the Winter Meetings, the Marlins have been extremely active, signing closer Heath Bell and being on the verge of announcing the Reyes deal. The team also is looking to lure in Albert Pujols.
The Marlins make it clear they are expecting big things from Ramirez in 2012.
"He's a big talent. He won a batting title two years ago," Beinfest said. "He can pretty much do anything he wants on a baseball field. He can take over a game. We've seen that before with his legs, his bat and his glove. He's a pretty special guy, and important guy."