The time has COME... it is OPENING DAY and the San Francisco Giants are taking on the Seattle Mariners in the FIRST game of the 2021 Major League Baseball season!! Jump in the chat and enjoy this pregame show as we check out the lineups, pitching matchups and full 26-man roster for the San Francisco Giants!!! Let's go GIANTS!!!! Mariners baseball pregame show - San Francisco Giants opening day pregame show. Pregame stream. Giants vs. Mariners BASEBALL. Humm Baby Baseball is an all baseball channel that talks baseball in general but also has a focus on the San Francisco Giants. My name is Erik and if you're interested in appearing on Humm Baby Baseball or doing any kind of collaboration, please e-mail me at hummbabybaseball@gmail.com. Please visit the HUMM BABY WEBSITE: https://www.hummbabybaseball.com Humm Baby Baseball PODCAST: https://www.buzzsprout.com/1093007 San Francisco Giants Blog: https://www.hummbabybaseball.com/sfgiants I spend anywhere from 3-8 hours every day working on Humm Baby Baseball.. if you enjoy this content, please consider helping me on Patreon. You can give as little as $1 a month to help grow the brand and give me more time to operate Humm Baby Baseball! PATREON: https://www.patreon.com/hummbabybaseball Follow HUMM BABY BASEBALL On: FACEBOOK: https://www.facebook.com/HummBabyBaseball TWITTER: https://www.twitter.com/hummbabybb Thanks for checking out this video and if you like what you see, subscribe today!