The following relief pitchers are still in Cubs camp. (Note: For purposes of this discussion, I am going to assume that Hayden Wesneski will be named to join the rotation, and other pitchers such as Adrian Sampson and Javier Assad will be among the relief choices.)
On the 40-man roster
Adbert Alzolay, Javier Assad, Brad Boxberger, Michael Fulmer, Brandon Hughes, Julian Merryweather, Michael Rucker, Adrian Sampson, Keegan Thompson, Rowan Wick
Non-roster invitees
Ryan Borucki, Nick Burdi, Tyler Duffey, Roenis Elias, Anthony Kay, Mark Leiter Jr., Brendon Little, Vinny Nittoli, Manuel Rodriguez, Cam Sanders
That’s a total of 20 pitchers.