The knockdown.

[Trainer Monkey]

Honest,when I first started sparring again,I got caught with a couple of shots early on that led to flash knockdowns,one minute everythings going well,the next your thinking"How did I get down here?"But as I sparred more,I just redeveloped the ability to blow those shots off.
Im assuming your local commision is going to ask for an MRI anyway,if that comes back clean,dont sweat it.
I would make him spar more,just to get him more accustomed to taking those shots

Perhaps,
I'll see what his attitude is like in a week when he's back in the gym, if he wants to I'll help him, but there is doubt in me now.

There will be no MRI, it was in private sparring.

Sorry,quite a few commisions ask for one,just to liscence you,so I was assuming.
See how he reacts to a few more sessions then,if it keeps happening,then Id start to worry..
Do yourself a favour and ask him if he's ever been diagnosed with a concussion before