10/18 AFL update
Cubs prospect Welington Castillo hit a two-run homer in a five-run seventh inning to spark the Mesa Solar Sox to a 6-4 win Saturday night over the Peoria Saguaros in Arizona Fall League play. John Gaub, whom the Cubs acquired in the Mark DeRosa trade with Cleveland, picked up the win in relief, and Blake Parker, who had 22 saves at Triple-A Iowa, notched a save.
The Solar Sox have Sunday off and resume play Monday, playing host to the Peoria Javelinas at HoHoKam Park.
— Carrie Muskat