Minus Jackie Bradley Jr.’s potential roster spot, the Red Sox know the identities of the other 24 players who will open the season.

First baseman/outfielder Mike Carp was named to the 25-man roster yesterday morning, as was right-handed reliever Clayton Mortensen. Outfielder Daniel Nava is “likely’’ to be on the roster as well, manager John Farrell said, but the club is taking a cautious approach to the outfield depth situation, which is why there are delays on Nava and Bradley.

The Red Sox want to get through this afternoon’s Grapefruit League finale unharmed because should an injury befall Bradley or Nava, the club would likely re-engage in contract talks with outfielder Ryan Sweeney, whose contract they declined to purchase Thursday night.

Sliding Sweeney into the outfield would provide the Red Sox with proven depth there. However, the chances of injury to Bradley and Nava are not high, which is why all signs point to both making the team.

“Until it’s official, yeah, there would be a scenario (of Bradley not making the Opening Day roster), but that would mean someone’s got to come that’s already been sent out or we look to do something different,” said Farrell. “But again, we’ve got some things to get through over the next 48 hours.”

The Red Sox have until midnight tonight to offer Sweeney a Triple-A contract, which they hope he would accept. Sweeney then has 48 hours after that to decide to take it — currently, he does not want to — or become a free agent and find out what opportunities he has elsewhere. The chances of him eventually returning to the Red Sox in some shape or fashion are not remote.