"Look, when any Major League team approaches you about a player and offers him a contract, I guess that's serious," Boras said.
Boras wouldn't say whether the offer was for one year or a multiyear deal. The Red Sox, per team policy, chose not to even confirm that a proposal had been submitted.
According to the Boston Herald, it's a two-year contract.
"We don't comment on specific negotiations, but we're in contact with Scott about Jason," general manager Theo Epstein said.
Though there was some speculation that Varitek would accept Boston's offer of arbitration, which would have guaranteed his return to the Red Sox in 2009, Boras said it was never a consideration.
The agent continues to be confident that the 36-year-old Varitek -- coming off the worst offensive season of his career -- will find a good option, be it in Boston or elsewhere. However, Boras wouldn't say whether Varitek has received offers from any teams besides the Red Sox.
"He's the captain of a team, which is a rare event," Boras said. "Certainly, Boston has let him know they want him back and we're talking about it. You also have to go out and look at other situations as well that might be available to him. I'm not going to talk about values. Obviously, Jason Varitek is a guy who, I think, teams know what his value is. He's going to be employed and do very well."
Ian Browne is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.