Cubs roster move: Kervin Castro added to 26-man active roster - Bleed Cubbie Blue
Chicago Cubs Minor League Wrap: September 3 South Bend playoffs - Bleed Cubbie Blue
Cubs seeing playoff success throughout Minor League system
Jake Arrieta - Wikipedia
Jake Arrieta Finally Signs - FantraxHQ
The Rundown: Cubs Beat Tigers, Bullpen Gassed, Suzuki Smokin', Reinsdorf Playing Dirty Once Again - Cubs Insider
The Rundown: Hoerner Becoming Clubhouse Leader, Cubs Discussing Marquee Free Agent Pitchers, Pujols Joins 700 Club - Cubs Insider
Cubs' top lefty starting pitchers all-time
Baseball's 106mph barrier: have pitchers reached the limits of their velocity?, MLB
Chicago Cubs Minor League Wrap: August 29 - Bleed Cubbie Blue
Cardinals' Miles Mikolas ejected in 1st inning after plunking Cubs' Ian Happ, who hit catcher with swing
The Cubs' Breakout Closer - MLB Trade Rumors
Minor league pitcher makes incredible out at first