Carlos Correa's 12-year, $315 million agreement with the New York Mets could be dramatically reduced after a physical raised questions about his long-term health.

The free agent shortstop and the club agreed to the deal last month after the San Francisco Giants wouldn't go ahead with finalizing a $350 million, 13-year agreement over concerns about his 2014 ankle surgery, people familiar with those negotiations told The Associated Press.

Now MLB insider Ken Rosenthal says he's expecting a dramatically reduced deal between Correa and the Mets.

'We expect it to be a dramatically different deal,' Rosenthal said on The Athletic Baseball Show. 'It's not gonna be 12 years, $315 [million] guaranteed. The question, again, is: To what extent does the language change, does the deal change? And how is Carlos Correa gonna be once he gets through all this? Will he be a happy Met? Will he be upset? Who knows?'

Rosenthal previously suggested that Mets owner Steve Cohen could use leverage to reduce Correa's salary, but walked those comments back on Wednesday.

'One thing I said earlier about the leverage: Yes, the Mets have all the leverage,' Rosenthal said. 'But they also want a happy player. And you don't want to start off a relationship—especially a long-term relationship with a player—with a certain degree of contentiousness. You want that player to be comfortable with the deal he's gotten and not feel like he has gotten shafted, in some respect.'

Giants executive Farhan Zaidi said the club expressed concerns to Correa's representative immediately when an issue arose with the shortstop's physical exam that led to that deal collapsing.

Zaidi, San Francisco's president of baseball operations, spoke publicly last month for the first time since the $350 million, 13-year contract for Correa fell through on December 20. An introductory news conference was called off about three hours before it was set to begin that day. Then Correa and agent Scott Boras struck a new deal with the Mets for $315 million over 12 years.

'I was on the phone with Scott Boras on the Monday that we did Carlos' physical right when his plane landed in San Francisco at 5pm and those conversations continued from that point, so any suggestion that this was an 11th-hour thing is just not accurate,' Zaidi said on a video call with a small group of beat reporters. 'As soon as we had information we shared it. We have a good working relationship with Scott Boras and his agency.'

Zaidi confirmed the Giants and Correa's camp had 'a difference of opinion on the medical review.'

The varying opinions were over a right ankle injury and surgery in 2014 when the star infielder was in Class-A ball, according to a person with direct knowledge of the negotiations who spoke to The Associated Press on condition of anonymity because of privacy rules. Correa's deal with the Mets is being held up by similar concerns.

Zaidi said it is important and standard practice of the front office 'to show them the respect of communicating any concerns immediately and not waiting until the last possible second.' He expressed having a good relationship with Boras.

If and when Correa's deal is finalized in New York, the 2015 AL Rookie of the Year would likely move from shortstop to third base with the Mets, who already have Francisco Lindor at short. Correa has a .279 career batting average with 155 homers and 553 RBIs in eight big league seasons, including a .291 average with 22 homers and 64 RBIs last year.