unsellable diamond

I am no money spent and just finished NL collection. I have no diamonds in AL yet.

I got the choose 1 diamond pack at level diamond 85 and of course get 4 NL players to chose from.

I picked Yelich.

Do you think I should hold onto him in case they make this reward sellable in the future or is that a lost cause? Should I just quick sell or exchange for 10 affinity points and move on from this?

Thanks

Likely hood he will not be sellable at this point so your options will likely be ro exchange him in one of the TAs to get 10 points

10 free TA points sounds good to me