The Cubs announced Monday that they have released righty Maikel Cleto and assigned nine players to minor league camp, thus reducing the roster from 60 to 50 players.
Aaron Brooks and Jose Rosario, both right-handed pitchers, and Jack Leathersich, a lefty, have been optioned to AAA Iowa. Righty Duane Underwood Jr. has been optioned to AA Tennessee. Righties Seth Frankoff, Casey Kelly, Jhondaniel Medina and Conor Mullee, along with southpaw Zac Rosscup (all non-roster invitees) were also optioned to minor league camp.