The American international is due back in the United States later this month for a final check-up with his specialists.
Holden will then return to the UK for more football-specific training in a bid to be fit in the coming months.
Speaking in his post-match press conference, Freedman said: “Stuart’s at a stage where he is now ready to go back to the United States to be signed off for the next stage of his rehab work.
“He’ll spend just over a week over there, continuing his training, then come back to us.
“He’s been training very well with our medical team and things are on track. He’s still got a fair way to go, maybe a couple of months, but he’s certainly making positive strides.
“When he comes back we’ll look at ramping things up with more physical training.”