Let's see what Sano does against more seasoned pitching before proclaiming that we have a log jam here.
If Sano does seem to have something left in the tank against higher level talent, then maybe you can package him with a prospect to get a pending free agent reliver. There are a lot of ifs in that scenario. I could see a losing team taking on his contract for the rest of the season to get a better prospect. And that's what I think will probably happen.