I always believed I could do it': How A's shortstop Marcus Semien turned into a star
Mitchell: Toronto Blue Jays betting on Marcus Semien's upside while infielder gambles on himself
2020 Archives Base Purple #22 Marcus Semien /175 - Oakland Athletics
Seven A's players who could be on different teams in 2021 MLB season – NBC Sports Bay Area & California
Oakland Athletics: Can Marcus Semien repeat breakout success in 2020?
Oakland 6, Twins 2: Khris Khrushs Twins (simulated) - Twinkie Town
Grading Matt Chapman and the 2020 A's third basemen - The Athletic
A's shortstop Semien embraces role as team leader, slugger - The San Diego Union-Tribune
Slugging A's counting on fast start to challenge Astros in AL West
How Marcus Semien, Ron Washington resurrected each others' careers with A's
Is shortstop Marcus Semien, despite 28 errors, improving A's defense? – The Mercury News
Marcus Semien Team Value To The Oakland A's - Back Sports Page