By checking out physically I hope you mean have a few big guys slam into him from different angles, have him do a few body rolls into camera men, have him do some awkward bends, do some very off balance landings coming off a dunk, and falling down hard on his back after getting fouled hard. Bad backs and basketball really don't mix well. They can be fine 1 day and then out of the blue get tweaked and you get a month of downtime, or worse, another surgery. Trust me on this, I've had a bad back for 30 years. My Xrays are good and most of the time it's great, but once in a while something doesn't go right and I am in terrifying pain. The very worst time it went out I was pulling a pant leg over a boot. I was like paralyzed for 2 days.
We already have Isaac as our designated miss most of the season/injury prone player, let's not draft a 2nd one when there are much healthier prospects available.