Going to answer my own question here 
I think Christian Reeves will be too slow to handle Flory's quick pivots in the lane. Thinking he'll guard the 6'10" guy from Spain.
So, if Keanu Dawes starts, then he will probably get the assignment, but I think Flory will be able to get by/around Dawes pretty easily.
If Trey White starts (preferred), then I think he will start out guarding Flory.
I think they'll put Tyran Stokes on 6'6" Karter Knox.
So, my guess is it'll be either Trey White or Keanu Dawes, whoever gets the start.
*If TKR sees the floor tonight, then he should definitely get some time guarding Flory.
Double teaming on the catch might be how they handle it if Flory starts to go off down low.