I know he’s been on the sideline and walking around, but this injury takes at least 3-4 months for the bone to heal around the steel rod/screws that was most likely inserted into the bone. From that point, there’s a couple of months of rehab and learning how to walk again. The closer to the knee the break is, the trickier the speed of the recovery. He should be starting light treadmill work, maybe stairs but this isn’t a 4-6 week injury.
Also, if anyone knows a surgeon who does this, inquire how this surgery is performed, it’ll explain why those surgeons are all very jacked. It’s not pretty!!