Harper has decreased swelling in his forearm but isn't ready to be activated from the injured list, Matt Breen of The Philadelphia Inquirer reports.
The 28-year-old was eligible to return from the injured list Wednesday, but he'll need more than the 10-day minimum to recover from a forearm contusion. Harper remains without an official timeline for his return, but based on comments from manager Joe Girardi, the outfielder is unlikely to be activated this weekend.