Everyone is tradeable because they have 6 months to sort out the "named later" part. So I'm guessing they already decided on names, but the names won't be official until after the season is over. Cool thanks! For anyone interested, there's some info covered here (which confirms Greenleaf's answer): https://www.mlb.com/news/trade-deadline-rules-for-mlb-in-2020 Basically, you can trade for someone not on the 60-man roster, but because it has to be PTBNL, they won't be able to play for the receiving team this year.