Solskjaer has confirmed to Sky that Rashford has suffered a stress fracture to his back, which means it is likely to be at least six weeks before he even starts rehab.
"He's suffered a bad injury," said Solskjaer.
"Yeah it’s a [back] stress fracture, it happened against Wolves. It’s not happened before, it happened there and then.
"He’ll be out for a while. He won’t be back until after the mid-season break. Normally six weeks to heal, but I’m not a doctor, and then he needs rehab after that probably."