There's a couple factors to consider:

1. If O'Hoppe goes in the IL, Wallach would likely be called up and take the 40th spot on the 40-man roster.

2. Warren is not on the 40-man roster either. So if he is called up, then another 40-man move would need to be made.

— Sam Blum (@SamBlum3) April 21, 2023