Seattle has been done making meaningful roster moves for weeks, but that hasn't stopped them from picking up the occasional arm here and there. They've been doing it all winter, stocking up on depth and checking to see if there are any uncut gems hiding out in free agency.
The names they're targeting may be ones you've never heard of. They traded for left-handed pitcher Josh Simpson earlier this week and struck a deal to reunite with Jhonathan Díaz earlier this month. Another recent bullpen addition is as unsuspecting as they come, but could bring at least something to the table.