Cubs have mixed reactions in first game with new MLB rules - Marquee Sports Network
Chicago Cubs Pitchers Don't Need Extra Postseason Clock Time - Sports Illustrated Inside The Cubs
Cubs' Opening Day Makes History, Shows MLB's New Rules – The Chronicle
Pitch clock - Wikipedia
Cubs' Marcus Stroman commits MLB's first pitch clock violation
Surprise: Marcus Stroman is Starting for the Cubs Tomorrow - Bleacher Nation
Marcus Stroman Would Prefer an Extension with the Cubs Over Being Traded at the Deadline - Bleacher Nation
What are pitchers like Stroman, Smyly, Giolito thinking on an 0-2 count?
Cubs' Marcus Stroman throws one-hitter vs. Rays - ABC7 Chicago